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diff --git a/Tahgibu-Animator/README.md b/Tahgibu-Animator/README.md
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+# Tahgibu Animator
+
+Animador 2D cuadro por cuadro, simple y sin marca de agua. Pensado para andar
+liviano incluso en notebooks modestas con gráfica integrada.
+
+## Características
+- Frame por frame real, con miniaturas en la timeline.
+- Timeline con scroll (rueda del mouse) para animaciones con muchos frames.
+- `F7` crea un frame nuevo. `←` / `→` navegan. `Inicio`/`Fin` van al primero/último.
+- `Ctrl+V` pega imágenes del portapapeles (necesita `wl-clipboard` en Wayland).
+- Dos lápices:
+  - Lápiz suave: acumula densidad al pasar varias veces (con difuminado).
+  - Lápiz sólido: 100% de densidad.
+- Borrador que **de verdad borra** (baja la transparencia del trazo).
+- Selector de color y tamaño de pincel.
+- Onion Skin (ve el frame anterior/siguiente semi-transparente).
+- Fondos: botón para elegir o quitar una imagen de fondo.
+- Sprites: se agregan, se pueden quitar de la lista, y se colocan con un clic
+  directo en el lienzo (apuntá y hacé clic; `Esc` cancela).
+- Deshacer / Rehacer (`Ctrl+Z` / `Ctrl+Y`) livianos en memoria: no duplican
+  toda la animación en cada trazo, así no se cuelga en equipos con poca RAM.
+- FPS configurable y reproducción (`Espacio`).
+- Exportar a **GIF animado** o a una **secuencia de PNG**.
+- Guardar / abrir / importar proyectos `.tgb` (el archivo lleva adentro todos
+  los frames, el fondo y los sprites, así se puede mover a otra PC sin
+  necesitar los archivos originales).
+- Confirma antes de perder cambios sin guardar (al crear nuevo, abrir otro
+  proyecto o cerrar la ventana).
+- Sin marca de agua, nunca.
+
+## Qué se corrigió respecto a la versión anterior (ASM Animator)
+- **El borrador no borraba nada** (dibujaba "transparente sobre transparente"
+  y no tenía ningún efecto visible). Ahora sí funciona.
+- **No existía ningún botón para poner un fondo**, aunque el formato de
+  archivo y el propio programa lo mencionaban. Se agregó "Fondo: Elegir/Quitar".
+- **No había Rehacer** (`redo`), solo Deshacer.
+- El Deshacer copiaba **toda la animación completa** en cada trazo de lápiz.
+  Con varios frames esto podía consumir varios GB de RAM y trabar el equipo.
+  Ahora cada acción guarda solo lo mínimo necesario para revertirla.
+- El lápiz suave aplicaba un difuminado sobre el lienzo completo en cada
+  movimiento del mouse, algo pesado en gráficas integradas. Ahora solo procesa
+  la zona del trazo.
+- La timeline no tenía forma de desplazarse: con muchos frames, los cuadros
+  quedaban fuera de la pantalla y no se podían seleccionar. Ahora tiene
+  scroll y miniaturas reales de cada frame.
+- Se podía perder trabajo sin guardar sin ningún aviso al cerrar o crear un
+  proyecto nuevo. Ahora se confirma antes.
+- Los sprites agregados no se guardaban dentro del proyecto `.tgb`. Ahora sí.
+- No había forma de sacar la animación fuera del programa. Se agregó
+  exportar a GIF y a secuencia de PNG.
+
+## Instalar en CachyOS / Arch
+```bash
+sudo pacman -S python python-pillow wl-clipboard
+./install.sh
+```
+
+Después abrí **Tahgibu Animator** desde el menú de aplicaciones (o ejecutá
+directamente `python3 tahgibu_animator.py`).
+
+## Formato de archivo
+`.tgb` es el formato propio del proyecto (JSON con las imágenes en base64
+adentro). También podés **abrir e importar** archivos `.asm` de la versión
+anterior del programa: son totalmente compatibles.
diff --git a/Tahgibu-Animator/install.sh b/Tahgibu-Animator/install.sh
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+++ b/Tahgibu-Animator/install.sh
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+#!/usr/bin/env bash
+set -e
+APP_DIR="$HOME/.local/share/tahgibu-animator"
+mkdir -p "$APP_DIR" "$HOME/.local/share/applications"
+
+cp tahgibu_animator.py "$APP_DIR/tahgibu_animator.py"
+chmod +x "$APP_DIR/tahgibu_animator.py"
+cp tahgibu-animator.desktop "$HOME/.local/share/applications/tahgibu-animator.desktop"
+
+echo "Tahgibu Animator instalado."
+echo "Dependencias necesarias: python3 y python-pillow."
+echo "Para pegar imágenes con Ctrl+V en KDE/Wayland: sudo pacman -S wl-clipboard"
+echo "Abrilo desde el menú de aplicaciones como: Tahgibu Animator"
diff --git a/Tahgibu-Animator/tahgibu-animator.desktop b/Tahgibu-Animator/tahgibu-animator.desktop
new file mode 100755
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+++ b/Tahgibu-Animator/tahgibu-animator.desktop
@@ -0,0 +1,10 @@
+#!/usr/bin/env xdg-open
+[Desktop Entry]
+Name=Tahgibu Animator
+Comment=Animación 2D cuadro por cuadro, simple y sin marca de agua
+Exec=python3 %h/.local/share/tahgibu-animator/tahgibu_animator.py
+Icon=multimedia-animation
+Terminal=false
+Type=Application
+Categories=Graphics;2DGraphics;Video;
+StartupNotify=true
diff --git a/Tahgibu-Animator/tahgibu_animator.py b/Tahgibu-Animator/tahgibu_animator.py
new file mode 100755
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--- /dev/null
+++ b/Tahgibu-Animator/tahgibu_animator.py
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+#!/usr/bin/env python3
+"""
+Tahgibu Animator
+Animación 2D cuadro por cuadro, simple y sin marca de agua.
+Pensado para andar liviano en equipos modestos (Linux).
+"""
+import tkinter as tk
+from tkinter import ttk, filedialog, messagebox, colorchooser
+import os, json, base64, io, subprocess
+from PIL import Image, ImageTk, ImageDraw, ImageFilter, ImageChops
+
+APP_NAME = "Tahgibu Animator"
+VERSION = "1.0.0"
+FORMAT_NAME = "TAHGIBU"
+LEGACY_FORMAT_NAMES = ("TAHGIBU", "ASM")   # ASM = formato del proyecto original, se puede seguir abriendo
+FILE_EXT = ".tgb"
+UNDO_LIMIT = 40
+THUMB_W, THUMB_H = 34, 34
+SLOT_W = 44
+
+
+class TahgibuAnimator:
+    def __init__(self, root):
+        self.root = root
+        self.root.title(f"{APP_NAME} {VERSION}")
+        self.root.geometry("1280x800")
+        self.root.minsize(980, 650)
+
+        # --- paleta ---
+        self.bg_color = "#171a20"
+        self.panel = "#20242b"
+        self.panel2 = "#292f38"
+        self.accent = "#6c7cff"
+        self.text = "#eef1f6"
+        self.muted = "#9ca6b5"
+        self.root.configure(bg=self.bg_color)
+
+        # --- estado de la animación ---
+        self.W, self.H = 960, 540
+        self.fps = 12
+        self.current = 0
+        self.frames = [Image.new("RGBA", (self.W, self.H), (0, 0, 0, 0))]
+        self.background = None          # imagen original (para guardar)
+        self._bg_scaled = None          # versión ya escalada (cache, no se recalcula en cada render)
+        self._bg_pos = (0, 0)
+        self.sprites = []                # lista de (nombre, imagen)
+
+        # --- herramientas ---
+        self.color = "#111111"
+        self.brush_size = 7
+        self.tool = "solid"
+        self.stamp_mode = False
+        self.pending_sprite = None
+
+        # --- reproducción ---
+        self.playing = False
+        self.play_after = None
+
+        # --- deshacer / rehacer (por acción, no copia toda la animación) ---
+        self.undo_stack = []
+        self.redo_stack = []
+
+        # --- varios ---
+        self.tk_image = None
+        self.last = None
+        self.dirty = False
+        self.current_path = None
+        self._thumb_cache = {}
+        self._onion_index = None
+        self._onion_valid = False
+        self._onion_prev = None
+        self._onion_next = None
+
+        self.make_ui()
+        self.root.protocol("WM_DELETE_WINDOW", self.on_close)
+        self.root.update_idletasks()   # asegura tamaño real del canvas antes del primer dibujo
+        self.render()
+
+    # ---------------------------------------------------------------- UI ---
+    def make_ui(self):
+        top = tk.Frame(self.root, bg=self.panel, height=54)
+        top.pack(fill="x")
+        top.pack_propagate(False)
+
+        tk.Label(top, text="Tahgibu", bg=self.panel, fg=self.accent,
+                 font=("DejaVu Sans", 16, "bold")).pack(side="left", padx=(16, 3))
+        tk.Label(top, text="ANIMATOR", bg=self.panel, fg=self.text,
+                 font=("DejaVu Sans", 11, "bold")).pack(side="left", padx=(0, 18))
+
+        def top_btn(txt, cmd):
+            return tk.Button(top, text=txt, command=cmd, bg=self.panel2, fg=self.text,
+                              activebackground="#3a414d", activeforeground="white",
+                              relief="flat", padx=10)
+
+        for txt, cmd in [
+            ("Nuevo", self.new_project),
+            ("Abrir", self.open_asm),
+            ("Guardar", self.save_asm),
+            ("Guardar como…", self.save_asm_as),
+            ("Importar", self.import_asm),
+            ("Pegar imagen", self.paste_image),
+        ]:
+            top_btn(txt, cmd).pack(side="left", padx=3, pady=10)
+
+        tk.Frame(top, bg="#3a414d", width=1).pack(side="left", fill="y", pady=12, padx=6)
+
+        top_btn("↶ Deshacer", self.undo).pack(side="left", padx=3, pady=10)
+        top_btn("↷ Rehacer", self.redo).pack(side="left", padx=3, pady=10)
+
+        tk.Frame(top, bg="#3a414d", width=1).pack(side="left", fill="y", pady=12, padx=6)
+
+        self.export_menu_btn = tk.Menubutton(top, text="Exportar ▾", bg=self.panel2, fg=self.text,
+                                              activebackground="#3a414d", relief="flat", padx=10)
+        export_menu = tk.Menu(self.export_menu_btn, tearoff=0)
+        export_menu.add_command(label="GIF animado…", command=self.export_gif)
+        export_menu.add_command(label="Secuencia de PNG…", command=self.export_png_sequence)
+        self.export_menu_btn.configure(menu=export_menu)
+        self.export_menu_btn.pack(side="left", padx=3, pady=10)
+
+        top_btn("❓ Ayuda", self.show_help).pack(side="left", padx=3, pady=10)
+
+        tk.Button(top, text="▶", command=self.toggle_play, bg=self.accent, fg="white",
+                  relief="flat", width=4).pack(side="right", padx=(3, 16), pady=10)
+        self.fps_var = tk.IntVar(value=self.fps)
+        tk.Spinbox(top, from_=1, to=60, textvariable=self.fps_var, width=4,
+                   bg=self.panel2, fg=self.text, buttonbackground=self.panel2,
+                   relief="flat").pack(side="right", padx=4)
+        tk.Label(top, text="FPS", bg=self.panel, fg=self.muted).pack(side="right")
+
+        body = tk.Frame(self.root, bg=self.bg_color)
+        body.pack(fill="both", expand=True)
+
+        # ------------------------------------------------------ panel izq ---
+        tools = tk.Frame(body, bg=self.panel, width=210)
+        tools.pack(side="left", fill="y")
+        tools.pack_propagate(False)
+
+        tk.Label(tools, text="HERRAMIENTAS", bg=self.panel, fg=self.muted,
+                 font=("DejaVu Sans", 9, "bold")).pack(anchor="w", padx=14, pady=(16, 8))
+
+        self.tool_buttons = {}
+        for key, label in [
+            ("soft", "◌  Lápiz suave"),
+            ("solid", "●  Lápiz sólido"),
+            ("eraser", "⌫  Borrador"),
+        ]:
+            b = tk.Button(tools, text=label, command=lambda k=key: self.set_tool(k),
+                          bg=self.panel2, fg=self.text, activebackground=self.accent,
+                          activeforeground="white", relief="flat", anchor="w", padx=12)
+            b.pack(fill="x", padx=10, pady=3)
+            self.tool_buttons[key] = b
+
+        tk.Button(tools, text="🎨  Elegir color", command=self.choose_color,
+                  bg=self.panel2, fg=self.text, activebackground="#3a414d",
+                  relief="flat", anchor="w", padx=12).pack(fill="x", padx=10, pady=(14, 4))
+        self.color_preview = tk.Label(tools, text="      ", bg=self.color, relief="solid", bd=1)
+        self.color_preview.pack(anchor="w", padx=14, pady=3)
+
+        size_row = tk.Frame(tools, bg=self.panel)
+        size_row.pack(fill="x", padx=14, pady=(14, 0))
+        tk.Label(size_row, text="Tamaño", bg=self.panel, fg=self.muted).pack(side="left")
+        self.size_label = tk.Label(size_row, text=str(self.brush_size), bg=self.panel, fg=self.text)
+        self.size_label.pack(side="right")
+        self.size_scale = tk.Scale(tools, from_=1, to=60, orient="horizontal",
+                                    command=self.on_size_change,
+                                    bg=self.panel, fg=self.text, troughcolor="#363d48",
+                                    highlightthickness=0)
+        self.size_scale.set(self.brush_size)
+        self.size_scale.pack(fill="x", padx=8)
+
+        self.onion_var = tk.BooleanVar(value=True)
+        tk.Checkbutton(tools, text="Onion Skin", variable=self.onion_var,
+                       command=self.render, bg=self.panel, fg=self.text,
+                       selectcolor=self.panel2, activebackground=self.panel,
+                       activeforeground=self.text).pack(anchor="w", padx=10, pady=(12, 2))
+
+        tk.Button(tools, text="🗑  Vaciar frame actual", command=self.clear_frame,
+                  bg=self.panel2, fg=self.text, relief="flat", anchor="w",
+                  padx=12).pack(fill="x", padx=10, pady=(6, 4))
+
+        tk.Label(tools, text="FONDO", bg=self.panel, fg=self.muted,
+                 font=("DejaVu Sans", 9, "bold")).pack(anchor="w", padx=14, pady=(16, 6))
+        bg_row = tk.Frame(tools, bg=self.panel)
+        bg_row.pack(fill="x", padx=10)
+        tk.Button(bg_row, text="Elegir…", command=self.choose_background,
+                  bg=self.panel2, fg=self.text, relief="flat").pack(side="left", expand=True, fill="x", padx=(0, 3))
+        tk.Button(bg_row, text="Quitar", command=self.clear_background,
+                  bg=self.panel2, fg=self.text, relief="flat").pack(side="left", expand=True, fill="x", padx=(3, 0))
+
+        tk.Label(tools, text="SPRITES", bg=self.panel, fg=self.muted,
+                 font=("DejaVu Sans", 9, "bold")).pack(anchor="w", padx=14, pady=(16, 6))
+        sprite_btn_row = tk.Frame(tools, bg=self.panel)
+        sprite_btn_row.pack(fill="x", padx=10)
+        tk.Button(sprite_btn_row, text="+ Añadir", command=self.add_sprite,
+                  bg=self.panel2, fg=self.text, relief="flat").pack(side="left", expand=True, fill="x", padx=(0, 3))
+        tk.Button(sprite_btn_row, text="− Quitar", command=self.remove_sprite,
+                  bg=self.panel2, fg=self.text, relief="flat").pack(side="left", expand=True, fill="x", padx=(3, 0))
+        self.sprite_list = tk.Listbox(tools, bg="#171a20", fg=self.text, height=6,
+                                       relief="flat", highlightthickness=0)
+        self.sprite_list.pack(fill="both", expand=True, padx=10, pady=5)
+        tk.Button(tools, text="Poner sprite en el lienzo", command=self.place_sprite,
+                  bg=self.accent, fg="white", relief="flat").pack(fill="x", padx=10, pady=(2, 10))
+
+        # ---------------------------------------------------------- lienzo ---
+        stage = tk.Frame(body, bg="#0f1115")
+        stage.pack(side="left", fill="both", expand=True)
+
+        self.canvas = tk.Canvas(stage, bg="#0f1115", highlightthickness=0)
+        self.canvas.pack(fill="both", expand=True, padx=16, pady=16)
+        self.canvas.bind("<Configure>", lambda e: self.render())
+        self.canvas.bind("<ButtonPress-1>", self.start_draw)
+        self.canvas.bind("<B1-Motion>", self.paint)
+        self.canvas.bind("<ButtonRelease-1>", self.end_draw)
+
+        self.status = tk.Label(stage, text="", bg="#0f1115", fg=self.muted, anchor="w")
+        self.status.pack(fill="x", padx=16, pady=(0, 8))
+
+        # -------------------------------------------------------- timeline ---
+        timeline_wrap = tk.Frame(self.root, bg=self.panel, height=150)
+        timeline_wrap.pack(fill="x")
+        timeline_wrap.pack_propagate(False)
+
+        row = tk.Frame(timeline_wrap, bg=self.panel)
+        row.pack(fill="x")
+        tk.Label(row, text="TIMELINE", bg=self.panel, fg=self.text,
+                 font=("DejaVu Sans", 10, "bold")).pack(side="left", padx=12, pady=8)
+        for txt, cmd in [("+ Frame", self.new_frame), ("Duplicar", self.duplicate_frame),
+                          ("Eliminar", self.delete_frame)]:
+            tk.Button(row, text=txt, command=cmd, bg=self.panel2, fg=self.text,
+                      relief="flat").pack(side="left", padx=3)
+        self.frame_count_label = tk.Label(row, text="", bg=self.panel, fg=self.muted)
+        self.frame_count_label.pack(side="right", padx=12)
+
+        tl_body = tk.Frame(timeline_wrap, bg=self.panel)
+        tl_body.pack(fill="x", padx=10, pady=(0, 8))
+        self.timeline = tk.Canvas(tl_body, bg="#15181d", height=92, highlightthickness=0,
+                                   xscrollincrement=20)
+        self.timeline.pack(fill="x", side="top")
+        self.timeline_scroll = tk.Scrollbar(tl_body, orient="horizontal", command=self.timeline.xview)
+        self.timeline_scroll.pack(fill="x", side="top")
+        self.timeline.configure(xscrollcommand=self.timeline_scroll.set)
+        self.timeline.bind("<Button-1>", self.timeline_click)
+        self.timeline.bind("<MouseWheel>", self._on_timeline_wheel)
+        self.timeline.bind("<Button-4>", self._on_timeline_wheel)
+        self.timeline.bind("<Button-5>", self._on_timeline_wheel)
+
+        # -------------------------------------------------------- atajos ---
+        self.root.bind("<F7>", lambda e: self.new_frame())
+        self.root.bind("<Left>", lambda e: self.select_frame(self.current - 1))
+        self.root.bind("<Right>", lambda e: self.select_frame(self.current + 1))
+        self.root.bind("<Home>", lambda e: self.select_frame(0))
+        self.root.bind("<End>", lambda e: self.select_frame(len(self.frames) - 1))
+        self.root.bind("<space>", lambda e: self.toggle_play())
+        self.root.bind("<Control-z>", lambda e: self.undo())
+        self.root.bind("<Control-y>", lambda e: self.redo())
+        self.root.bind("<Control-Shift-Z>", lambda e: self.redo())
+        self.root.bind("<Control-v>", lambda e: self.paste_image())
+        self.root.bind("<Control-s>", lambda e: self.save_asm())
+        self.root.bind("<Control-n>", lambda e: self.new_project())
+        self.root.bind("<Control-o>", lambda e: self.open_asm())
+        self.root.bind("<Escape>", self.on_escape)
+
+        self.set_tool("solid")
+
+    # ----------------------------------------------------------- ayudas ---
+    def show_help(self):
+        messagebox.showinfo(
+            "Ayuda - " + APP_NAME,
+            "Atajos de teclado:\n\n"
+            "F7 — nuevo frame\n"
+            "←/→ — frame anterior / siguiente\n"
+            "Inicio/Fin — primer / último frame\n"
+            "Espacio — reproducir / pausar\n"
+            "Ctrl+Z / Ctrl+Y — deshacer / rehacer\n"
+            "Ctrl+S — guardar\n"
+            "Ctrl+O — abrir\n"
+            "Ctrl+N — nuevo proyecto\n"
+            "Ctrl+V — pegar imagen del portapapeles\n"
+            "Esc — cancelar acción / detener reproducción\n\n"
+            "Flujo básico: dibujá en el lienzo, apretá F7 para el siguiente\n"
+            "frame, repetí, y usá ▶ para ver la animación."
+        )
+
+    def on_escape(self, e):
+        if self.stamp_mode:
+            self.stamp_mode = False
+            self.pending_sprite = None
+            self.canvas.configure(cursor="")
+            self.update_status()
+        elif self.playing:
+            self.stop()
+            self.render(full=False)
+
+    def mark_dirty(self):
+        self.dirty = True
+
+    def confirm_discard(self, action="continuar"):
+        if not self.dirty:
+            return True
+        return messagebox.askyesno("Cambios sin guardar",
+                                    f"Hay cambios sin guardar. ¿Querés {action} de todas formas?")
+
+    def on_close(self):
+        self.stop()
+        if self.dirty and not messagebox.askyesno("Salir", "Hay cambios sin guardar. ¿Salir de todas formas?"):
+            return
+        self.root.destroy()
+
+    def get_fps(self):
+        try:
+            v = int(self.fps_var.get())
+            return max(1, min(60, v))
+        except Exception:
+            return self.fps
+
+    def on_size_change(self, v):
+        self.brush_size = max(1, int(float(v)))
+        self.size_label.configure(text=str(self.brush_size))
+
+    def set_tool(self, tool):
+        self.tool = tool
+        self.stamp_mode = False
+        self.pending_sprite = None
+        self.canvas.configure(cursor="")
+        for k, b in self.tool_buttons.items():
+            b.configure(bg=self.accent if k == tool else self.panel2)
+
+    def choose_color(self):
+        picked = colorchooser.askcolor(color=self.color, title="Elegir color")
+        if picked and picked[1]:
+            self.color = picked[1]
+            self.color_preview.configure(bg=self.color)
+
+    # ------------------------------------------------- deshacer / rehacer ---
+    def push_action(self, action):
+        self.undo_stack.append(action)
+        if len(self.undo_stack) > UNDO_LIMIT:
+            self.undo_stack.pop(0)
+        self.redo_stack.clear()
+        self.mark_dirty()
+
+    def _begin_frame_edit(self):
+        """Guarda una copia del frame actual ANTES de modificarlo (para poder deshacer)."""
+        self.push_action(("paint", self.current, self.frames[self.current].copy()))
+        self._invalidate_thumb(self.current)
+
+    def _invalidate_onion(self):
+        self._onion_valid = False
+
+    def _invalidate_thumb(self, i=None):
+        if i is None:
+            self._thumb_cache.clear()
+        else:
+            self._thumb_cache.pop(i, None)
+
+    def _apply_inverse(self, action):
+        """Aplica una acción y devuelve la acción opuesta (usado tanto por undo como por redo)."""
+        kind = action[0]
+        if kind == "paint":
+            _, idx, img = action
+            idx = min(idx, len(self.frames) - 1)
+            current_img = self.frames[idx].copy()
+            self.frames[idx] = img
+            self.current = idx
+            self._invalidate_thumb(idx)
+            return ("paint", idx, current_img)
+        elif kind == "insert":
+            _, idx, prev_current = action
+            idx = min(idx, len(self.frames) - 1)
+            removed = self.frames.pop(idx)
+            if not self.frames:
+                self.frames = [Image.new("RGBA", (self.W, self.H), (0, 0, 0, 0))]
+            self.current = min(prev_current, len(self.frames) - 1)
+            self._invalidate_thumb()
+            return ("delete", idx, removed, prev_current)
+        elif kind == "delete":
+            _, idx, img, prev_current = action
+            idx = min(idx, len(self.frames))
+            self.frames.insert(idx, img)
+            self.current = idx
+            self._invalidate_thumb()
+            return ("insert", idx, prev_current)
+        return action
+
+    def undo(self):
+        if not self.undo_stack:
+            return
+        action = self.undo_stack.pop()
+        redo_action = self._apply_inverse(action)
+        self.redo_stack.append(redo_action)
+        if len(self.redo_stack) > UNDO_LIMIT:
+            self.redo_stack.pop(0)
+        self._invalidate_onion()
+        self.mark_dirty()
+        self.render()
+
+    def redo(self):
+        if not self.redo_stack:
+            return
+        action = self.redo_stack.pop()
+        undo_action = self._apply_inverse(action)
+        self.undo_stack.append(undo_action)
+        self._invalidate_onion()
+        self.mark_dirty()
+        self.render()
+
+    # ------------------------------------------------------------ frames ---
+    def new_project(self):
+        if not self.confirm_discard("crear un proyecto nuevo"):
+            return
+        self.stop()
+        self.frames = [Image.new("RGBA", (self.W, self.H), (0, 0, 0, 0))]
+        self.background = None
+        self._bg_scaled = None
+        self.sprites = []
+        self.sprite_list.delete(0, "end")
+        self.current = 0
+        self.current_path = None
+        self.undo_stack.clear()
+        self.redo_stack.clear()
+        self._invalidate_onion()
+        self._invalidate_thumb()
+        self.dirty = False
+        self.render()
+
+    def new_frame(self):
+        idx = self.current + 1
+        prev_current = self.current
+        self.frames.insert(idx, Image.new("RGBA", (self.W, self.H), (0, 0, 0, 0)))
+        self.current = idx
+        self.push_action(("insert", idx, prev_current))
+        self._invalidate_onion()
+        self._invalidate_thumb()
+        self.render()
+
+    def duplicate_frame(self):
+        idx = self.current + 1
+        prev_current = self.current
+        self.frames.insert(idx, self.frames[self.current].copy())
+        self.current = idx
+        self.push_action(("insert", idx, prev_current))
+        self._invalidate_onion()
+        self._invalidate_thumb()
+        self.render()
+
+    def delete_frame(self):
+        if len(self.frames) <= 1:
+            messagebox.showinfo(APP_NAME, "No podés borrar el único frame que queda.")
+            return
+        idx = self.current
+        img = self.frames[idx]
+        prev_current = self.current
+        del self.frames[idx]
+        self.current = min(idx, len(self.frames) - 1)
+        self.push_action(("delete", idx, img, prev_current))
+        self._invalidate_onion()
+        self._invalidate_thumb()
+        self.render()
+
+    def clear_frame(self):
+        self._begin_frame_edit()
+        self.frames[self.current] = Image.new("RGBA", (self.W, self.H), (0, 0, 0, 0))
+        self.render()
+
+    def select_frame(self, i):
+        i = max(0, min(i, len(self.frames) - 1))
+        if i == self.current:
+            return
+        self.current = i
+        self.render()
+
+    def timeline_click(self, e):
+        cx = self.timeline.canvasx(e.x)
+        i = int((cx - 22) // SLOT_W)
+        if 0 <= i < len(self.frames):
+            self.select_frame(i)
+
+    def _on_timeline_wheel(self, event):
+        if getattr(event, "delta", 0):
+            self.timeline.xview_scroll(-3 if event.delta > 0 else 3, "units")
+        elif getattr(event, "num", None) == 4:
+            self.timeline.xview_scroll(-3, "units")
+        elif getattr(event, "num", None) == 5:
+            self.timeline.xview_scroll(3, "units")
+
+    # -------------------------------------------------------- background ---
+    def choose_background(self):
+        path = filedialog.askopenfilename(
+            filetypes=[("Imágenes", "*.png *.jpg *.jpeg *.webp *.bmp"), ("Todos", "*.*")])
+        if not path:
+            return
+        try:
+            im = Image.open(path).convert("RGBA")
+        except Exception as e:
+            messagebox.showerror("Fondo", f"No se pudo abrir la imagen:\n{e}")
+            return
+        self.background = im
+        self._rebuild_bg_cache()
+        self.mark_dirty()
+        self.render()
+
+    def clear_background(self):
+        self.background = None
+        self._bg_scaled = None
+        self.mark_dirty()
+        self.render()
+
+    def _rebuild_bg_cache(self):
+        if self.background is None:
+            self._bg_scaled = None
+            return
+        bg = self.background.copy()
+        bg.thumbnail((self.W, self.H), Image.Resampling.LANCZOS)
+        self._bg_scaled = bg
+        self._bg_pos = ((self.W - bg.width) // 2, (self.H - bg.height) // 2)
+
+    # ------------------------------------------------------------ pintar ---
+    def coords(self, e):
+        cw = max(1, self.canvas.winfo_width() - 32)
+        ch = max(1, self.canvas.winfo_height() - 32)
+        scale = min(cw / self.W, ch / self.H)
+        if scale <= 0:
+            scale = 1
+        ox = (self.canvas.winfo_width() - self.W * scale) / 2
+        oy = (self.canvas.winfo_height() - self.H * scale) / 2
+        return (e.x - ox) / scale, (e.y - oy) / scale
+
+    def start_draw(self, e):
+        x, y = self.coords(e)
+        if not (0 <= x < self.W and 0 <= y < self.H):
+            return
+        if self.stamp_mode and self.pending_sprite is not None:
+            self.stamp_sprite_at(x, y)
+            return
+        self._begin_frame_edit()
+        self.last = (x, y)
+        self.paint(e)
+
+    def paint(self, e):
+        if self.last is None:
+            return
+        x, y = self.coords(e)
+        x = max(0, min(self.W - 1, x))
+        y = max(0, min(self.H - 1, y))
+        im = self.frames[self.current]
+        if self.tool == "eraser":
+            self.erase_line(im, self.last, (x, y), self.brush_size)
+        elif self.tool == "soft":
+            self.soft_line(im, self.last, (x, y), self.brush_size, self.hex_rgba(self.color))
+        else:
+            draw = ImageDraw.Draw(im, "RGBA")
+            width = max(1, int(self.brush_size))
+            color = self.hex_rgba(self.color)
+            draw.line([self.last, (x, y)], fill=color, width=width, joint="curve")
+            r = width / 2
+            draw.ellipse([x - r, y - r, x + r, y + r], fill=color)
+        self.last = (x, y)
+        self._invalidate_thumb(self.current)
+        self.render(full=False)
+
+    def end_draw(self, e):
+        self.last = None
+        self.render(full=True)
+
+    def hex_rgba(self, h):
+        h = h.lstrip("#")
+        return tuple(int(h[i:i + 2], 16) for i in (0, 2, 4)) + (255,)
+
+    def soft_line(self, im, a, b, size, color):
+        x1, y1 = a
+        x2, y2 = b
+        r = size / 2
+        blur = max(1, size / 3)
+        pad = int(r + blur * 2 + 2)
+        minx = max(0, int(min(x1, x2) - pad))
+        miny = max(0, int(min(y1, y2) - pad))
+        maxx = min(im.width, int(max(x1, x2) + pad))
+        maxy = min(im.height, int(max(y1, y2) + pad))
+        w, h = max(1, maxx - minx), max(1, maxy - miny)
+        layer = Image.new("RGBA", (w, h), (0, 0, 0, 0))
+        d = ImageDraw.Draw(layer, "RGBA")
+        dist = max(1, int(((x2 - x1) ** 2 + (y2 - y1) ** 2) ** 0.5))
+        for n in range(dist + 1):
+            t = n / dist
+            x = x1 + (x2 - x1) * t - minx
+            y = y1 + (y2 - y1) * t - miny
+            d.ellipse((x - r, y - r, x + r, y + r), fill=(color[0], color[1], color[2], 70))
+        layer = layer.filter(ImageFilter.GaussianBlur(blur))
+        im.alpha_composite(layer, (minx, miny))
+
+    def erase_line(self, im, a, b, size):
+        x1, y1 = a
+        x2, y2 = b
+        r = size / 2
+        pad = int(r + 2)
+        minx = max(0, int(min(x1, x2) - pad))
+        miny = max(0, int(min(y1, y2) - pad))
+        maxx = min(im.width, int(max(x1, x2) + pad))
+        maxy = min(im.height, int(max(y1, y2) + pad))
+        w, h = max(1, maxx - minx), max(1, maxy - miny)
+        mask = Image.new("L", (w, h), 0)
+        d = ImageDraw.Draw(mask)
+        width = max(1, int(size))
+        lx1, ly1 = x1 - minx, y1 - miny
+        lx2, ly2 = x2 - minx, y2 - miny
+        d.line([(lx1, ly1), (lx2, ly2)], fill=255, width=width, joint="curve")
+        d.ellipse((lx1 - r, ly1 - r, lx1 + r, ly1 + r), fill=255)
+        d.ellipse((lx2 - r, ly2 - r, lx2 + r, ly2 + r), fill=255)
+        region = im.crop((minx, miny, maxx, maxy))
+        alpha = region.getchannel("A")
+        inv_mask = mask.point(lambda p: 255 - p)
+        region.putalpha(ImageChops.multiply(alpha, inv_mask))
+        im.paste(region, (minx, miny))
+
+    # ------------------------------------------------------------ sprites ---
+    def add_sprite(self):
+        paths = filedialog.askopenfilenames(
+            filetypes=[("Imágenes", "*.png *.jpg *.jpeg *.webp *.gif"), ("Todos", "*.*")])
+        for p in paths:
+            try:
+                im = Image.open(p).convert("RGBA")
+                self.sprites.append((os.path.basename(p), im))
+                self.sprite_list.insert("end", os.path.basename(p))
+                self.mark_dirty()
+            except Exception as e:
+                messagebox.showerror("Sprite", str(e))
+
+    def remove_sprite(self):
+        sel = self.sprite_list.curselection()
+        if not sel:
+            return
+        i = sel[0]
+        del self.sprites[i]
+        self.sprite_list.delete(i)
+        self.mark_dirty()
+
+    def place_sprite(self):
+        sel = self.sprite_list.curselection()
+        if not sel:
+            messagebox.showinfo(APP_NAME, "Elegí primero un sprite de la lista.")
+            return
+        _, im = self.sprites[sel[0]]
+        self.pending_sprite = im
+        self.stamp_mode = True
+        self.canvas.configure(cursor="crosshair")
+        self.status.configure(text="Hacé clic en el lienzo para colocar el sprite (Esc para cancelar).")
+
+    def stamp_sprite_at(self, x, y):
+        self._begin_frame_edit()
+        layer = self.pending_sprite.copy()
+        maxw, maxh = self.W // 2, self.H // 2
+        if layer.width > maxw or layer.height > maxh:
+            layer.thumbnail((maxw, maxh), Image.Resampling.LANCZOS)
+        px = int(x - layer.width / 2)
+        py = int(y - layer.height / 2)
+        self.frames[self.current].alpha_composite(layer, (px, py))
+        self.stamp_mode = False
+        self.pending_sprite = None
+        self.canvas.configure(cursor="")
+        self.render()
+
+    def paste_image(self):
+        im = self._read_clipboard_image()
+        if im is None:
+            messagebox.showinfo(
+                "Pegar imagen",
+                "No encontré una imagen en el portapapeles.\n"
+                "En CachyOS/Wayland instalá wl-clipboard: sudo pacman -S wl-clipboard")
+            return
+        self._begin_frame_edit()
+        im.thumbnail((self.W, self.H), Image.Resampling.LANCZOS)
+        x = (self.W - im.width) // 2
+        y = (self.H - im.height) // 2
+        self.frames[self.current].alpha_composite(im, (x, y))
+        self.render()
+
+    def _read_clipboard_image(self):
+        for cmd in (["wl-paste", "--no-newline", "--type", "image/png"],
+                    ["xclip", "-selection", "clipboard", "-t", "image/png", "-o"]):
+            try:
+                p = subprocess.run(cmd, capture_output=True, timeout=2)
+                if p.returncode == 0 and p.stdout:
+                    return Image.open(io.BytesIO(p.stdout)).convert("RGBA")
+            except Exception:
+                continue
+        return None
+
+    # ---------------------------------------------------------- render ----
+    def composite(self, index):
+        out = Image.new("RGBA", (self.W, self.H), (255, 255, 255, 255))
+        if self._bg_scaled is not None:
+            out.alpha_composite(self._bg_scaled, self._bg_pos)
+        out.alpha_composite(self.frames[index])
+        return out
+
+    def _ensure_onion_cache(self):
+        if self._onion_valid and self._onion_index == self.current:
+            return
+        self._onion_index = self.current
+        self._onion_valid = True
+        if self.current > 0:
+            prev = self.frames[self.current - 1].copy()
+            prev.putalpha(prev.getchannel("A").point(lambda p: int(p * 0.22)))
+            self._onion_prev = prev
+        else:
+            self._onion_prev = None
+        if self.current < len(self.frames) - 1:
+            nxt = self.frames[self.current + 1].copy()
+            nxt.putalpha(nxt.getchannel("A").point(lambda p: int(p * 0.12)))
+            self._onion_next = nxt
+        else:
+            self._onion_next = None
+
+    def render(self, full=True):
+        cw = max(50, self.canvas.winfo_width() - 32)
+        ch = max(50, self.canvas.winfo_height() - 32)
+        scale = min(cw / self.W, ch / self.H)
+        size = (max(1, int(self.W * scale)), max(1, int(self.H * scale)))
+        img = self.composite(self.current)
+        if self.onion_var.get():
+            self._ensure_onion_cache()
+            if self._onion_prev is not None:
+                img.alpha_composite(self._onion_prev)
+            if self._onion_next is not None:
+                img.alpha_composite(self._onion_next)
+        resample = Image.Resampling.LANCZOS if full else Image.Resampling.BILINEAR
+        img = img.resize(size, resample)
+        self.tk_image = ImageTk.PhotoImage(img)
+        self.canvas.delete("all")
+        self.canvas.create_image(self.canvas.winfo_width() / 2, self.canvas.winfo_height() / 2,
+                                  image=self.tk_image)
+        if full:
+            self.draw_timeline()
+            self.update_status()
+
+    def update_status(self):
+        mode = "colocando sprite" if self.stamp_mode else self.tool
+        star = " •" if self.dirty else ""
+        self.status.configure(
+            text=f"Frame {self.current + 1}/{len(self.frames)}   •   {self.get_fps()} FPS   •   {mode}{star}")
+        self.frame_count_label.configure(text=f"{len(self.frames)} frame(s)")
+
+    def _get_thumb(self, i):
+        if i not in self._thumb_cache:
+            im = self.composite(i).convert("RGB")
+            im.thumbnail((THUMB_W, THUMB_H), Image.Resampling.LANCZOS)
+            self._thumb_cache[i] = ImageTk.PhotoImage(im)
+        return self._thumb_cache[i]
+
+    def draw_timeline(self):
+        self.timeline.delete("all")
+        total = len(self.frames)
+        view_w = self.timeline.winfo_width() or 600
+        xleft = self.timeline.canvasx(0)
+        first = max(0, int((xleft - 22) // SLOT_W) - 1)
+        last = min(total - 1, int((xleft + view_w - 22) // SLOT_W) + 1)
+        self._thumb_refs = []
+        for i in range(first, last + 1):
+            x = 22 + i * SLOT_W
+            self.timeline.create_text(x, 10, text=str(i + 1), fill="#8f99a8")
+            fill = self.accent if i == self.current else "#333a45"
+            self.timeline.create_rectangle(x - 19, 22, x + 19, 22 + THUMB_H + 4, outline=fill, width=2)
+            thumb = self._get_thumb(i)
+            self.timeline.create_image(x, 24 + THUMB_H // 2, image=thumb)
+            self._thumb_refs.append(thumb)
+        self.timeline.configure(scrollregion=(0, 0, 22 + total * SLOT_W + 40, 92))
+        # asegura que el frame actual quede visible
+        cur_x = 22 + self.current * SLOT_W
+        if cur_x < xleft + 40 or cur_x > xleft + view_w - 40:
+            frac_total = max(1, 22 + total * SLOT_W + 40)
+            self.timeline.xview_moveto(max(0.0, (cur_x - view_w / 2) / frac_total))
+
+    # ------------------------------------------------------ reproducción ---
+    def toggle_play(self):
+        if self.playing:
+            self.stop()
+        else:
+            self.playing = True
+            self.play_next()
+
+    def stop(self):
+        self.playing = False
+        if self.play_after:
+            try:
+                self.root.after_cancel(self.play_after)
+            except Exception:
+                pass
+            self.play_after = None
+
+    def play_next(self):
+        if not self.playing:
+            return
+        self.current = (self.current + 1) % len(self.frames)
+        self.render()
+        delay = max(1, int(1000 / self.get_fps()))
+        self.play_after = self.root.after(delay, self.play_next)
+
+    # ------------------------------------------------------- exportación ---
+    def export_gif(self):
+        if len(self.frames) < 1:
+            return
+        path = filedialog.asksaveasfilename(defaultextension=".gif",
+                                             filetypes=[("GIF animado", "*.gif")])
+        if not path:
+            return
+        try:
+            duration_ms = max(20, int(1000 / self.get_fps()))
+            composed = [self.composite(i).convert("RGB") for i in range(len(self.frames))]
+            composed[0].save(path, save_all=True, append_images=composed[1:],
+                              duration=duration_ms, loop=0)
+            messagebox.showinfo("Exportar GIF", f"GIF exportado:\n{path}")
+        except Exception as e:
+            messagebox.showerror("Exportar GIF", str(e))
+
+    def export_png_sequence(self):
+        folder = filedialog.askdirectory(title="Elegí una carpeta para los PNG")
+        if not folder:
+            return
+        try:
+            for i in range(len(self.frames)):
+                self.composite(i).save(os.path.join(folder, f"frame_{i + 1:03d}.png"))
+            messagebox.showinfo("Exportar PNG", f"Se exportaron {len(self.frames)} imágenes a:\n{folder}")
+        except Exception as e:
+            messagebox.showerror("Exportar PNG", str(e))
+
+    # ------------------------------------------------------ guardar/abrir ---
+    def project_data(self):
+        payload = {
+            "format": FORMAT_NAME, "version": 2, "app": APP_NAME,
+            "fps": self.get_fps(), "width": self.W, "height": self.H,
+            "community_owned": True, "frames": [], "sprites": [],
+        }
+        for im in self.frames:
+            buf = io.BytesIO()
+            im.save(buf, "PNG")
+            payload["frames"].append(base64.b64encode(buf.getvalue()).decode())
+        if self.background is not None:
+            buf = io.BytesIO()
+            self.background.save(buf, "PNG")
+            payload["background"] = base64.b64encode(buf.getvalue()).decode()
+        for name, im in self.sprites:
+            buf = io.BytesIO()
+            im.save(buf, "PNG")
+            payload["sprites"].append({"name": name, "image": base64.b64encode(buf.getvalue()).decode()})
+        return payload
+
+    def load_project_data(self, data):
+        if data.get("format") not in LEGACY_FORMAT_NAMES:
+            raise ValueError("No es un archivo de Tahgibu Animator válido")
+        self.stop()
+        self.fps_var.set(max(1, min(60, int(data.get("fps", 12)))))
+        self.W = int(data.get("width", 960))
+        self.H = int(data.get("height", 540))
+        frames = []
+        for raw in data.get("frames", []):
+            im = Image.open(io.BytesIO(base64.b64decode(raw))).convert("RGBA")
+            if im.size != (self.W, self.H):
+                im = im.resize((self.W, self.H), Image.Resampling.LANCZOS)
+            frames.append(im)
+        self.frames = frames or [Image.new("RGBA", (self.W, self.H), (0, 0, 0, 0))]
+        self.current = 0
+        self.background = None
+        if data.get("background"):
+            self.background = Image.open(io.BytesIO(base64.b64decode(data["background"]))).convert("RGBA")
+        self._rebuild_bg_cache()
+        self.sprites = []
+        self.sprite_list.delete(0, "end")
+        for s in data.get("sprites", []):
+            try:
+                im = Image.open(io.BytesIO(base64.b64decode(s["image"]))).convert("RGBA")
+                self.sprites.append((s.get("name", "sprite"), im))
+                self.sprite_list.insert("end", s.get("name", "sprite"))
+            except Exception:
+                pass
+        self.undo_stack.clear()
+        self.redo_stack.clear()
+        self._invalidate_onion()
+        self._invalidate_thumb()
+        self.dirty = False
+        self.render()
+
+    def save_asm(self):
+        if self.current_path:
+            self._write_project(self.current_path)
+        else:
+            self.save_asm_as()
+
+    def save_asm_as(self):
+        path = filedialog.asksaveasfilename(defaultextension=FILE_EXT,
+                                             filetypes=[("Tahgibu Animator", f"*{FILE_EXT}")])
+        if not path:
+            return
+        self._write_project(path)
+
+    def _write_project(self, path):
+        try:
+            with open(path, "w", encoding="utf-8") as f:
+                json.dump(self.project_data(), f, separators=(",", ":"))
+            self.current_path = path
+            self.dirty = False
+            self.update_status()
+            messagebox.showinfo(APP_NAME, "Proyecto guardado.")
+        except Exception as e:
+            messagebox.showerror(APP_NAME, f"No se pudo guardar:\n{e}")
+
+    def open_asm(self):
+        if not self.confirm_discard("abrir otro proyecto"):
+            return
+        path = filedialog.askopenfilename(filetypes=[("Tahgibu Animator", f"*{FILE_EXT} *.asm"),
+                                                       ("Todos", "*.*")])
+        if not path:
+            return
+        try:
+            with open(path, encoding="utf-8") as f:
+                data = json.load(f)
+            self.load_project_data(data)
+            self.current_path = path
+        except Exception as e:
+            messagebox.showerror(APP_NAME, f"No se pudo abrir:\n{e}")
+
+    def import_asm(self):
+        path = filedialog.askopenfilename(filetypes=[("Tahgibu Animator", f"*{FILE_EXT} *.asm"),
+                                                       ("Todos", "*.*")])
+        if not path:
+            return
+        try:
+            with open(path, encoding="utf-8") as f:
+                data = json.load(f)
+            if data.get("format") not in LEGACY_FORMAT_NAMES:
+                raise ValueError("Archivo incompatible")
+            incoming = []
+            for raw in data.get("frames", []):
+                im = Image.open(io.BytesIO(base64.b64decode(raw))).convert("RGBA")
+                im = im.resize((self.W, self.H), Image.Resampling.LANCZOS)
+                incoming.append(im)
+            if incoming:
+                idx = self.current + 1
+                self.frames[idx:idx] = incoming
+                self.current = idx
+                # Importar varios frames de golpe no se registra en Deshacer (Ctrl+Z)
+                # por simplicidad; se avisa al usuario en el mensaje de abajo.
+                self._invalidate_onion()
+                self._invalidate_thumb()
+                self.mark_dirty()
+                self.render()
+                messagebox.showinfo("Importar", f"Se importaron {len(incoming)} frame(s). "
+                                                 "Nota: esta acción no se puede deshacer con Ctrl+Z.")
+        except Exception as e:
+            messagebox.showerror("Importar", str(e))
+
+
+if __name__ == "__main__":
+    root = tk.Tk()
+    app = TahgibuAnimator(root)
+    root.mainloop()