Theme Plymouth: chat photographe anime au boot

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/plymouth-theme/photobooth.plymouth

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+[Plymouth Theme]
+Name=Photobooth
+Description=Chat photographe - Animation de demarrage
+ModuleName=script
+
+[script]
+ImageDir=/usr/share/plymouth/themes/photobooth
+ScriptFile=/usr/share/plymouth/themes/photobooth/photobooth.script

scripts/plymouth-theme/photobooth.script

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+// Animation du chat photographe
+frame = 0;
+total_frames = 20;
+
+for (i = 0; i < total_frames; i++) {
+    frames[i] = Image("frame-" + String(i).PadLeft(4, "0") + ".png");
+}
+
+bg = Image("background.png");
+
+fun refresh_callback() {
+    bg.Draw(0, 0);
+    frames[frame].Draw(0, 0);
+    frame = (frame + 1) % total_frames;
+}
+
+Plymouth.SetRefreshFunction(refresh_callback);
+Plymouth.SetRefreshRate(5);