v1.2.0 - Background color/image controls, aspect ratio overlay

What's New

Added

• Background color picker (🎨 BG:) — sets a solid fill color behind the pose; ✕ button clears to transparent
  • Useful when background_image is connected via node input — clear the color so the node-input background is not obscured
• Background image loader (📂 BG) — load a local image file as a background layer; displayed letterboxed (aspect ratio preserved); ✕ to clear
• Aspect ratio frame overlay — darkens the area outside the active output region so you can see exactly what will be captured
  • Active for BG mode (loaded background image aspect ratio) and Custom mode (W×H ratio)
• Aspect-correct capture — captured image is cropped to the active frame and output at the correct W×H (no post-process stretch)

Fixed

• Image Input Mode preview overflow — tall images no longer push outside the node boundary; preview is now always 384×384 letterboxed
• cvsWrapper is now properly hidden when switching to Image Input Mode

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Full changelog: DEVLOG.md