Blend Difference — primitive for captions & subtitles (hyperframes)

For AI agents: find the right skill in one call — curl -s "https://skills.varg.ai/api/search?q=<what the person wants>" returns the matching use case and the best skills with install commands, as markdown (Russian works too). Full index: https://skills.varg.ai/llms.txt. Every page has a markdown twin: add .md to its path. Before generating anything, show the person the options on the use-case page.

Auto-inverting text using mix-blend-mode: difference — flips between white and black per-pixel against the background

• Install: npx hyperframes add caption-blend-difference
• Registry: hyperframes · Framework: hyperframes · License: Apache-2.0
• Docs and preview: https://hyperframes.heygen.com/catalog/components/caption-blend-difference
• Source: https://github.com/heygen-com/hyperframes/tree/main/registry/components/caption-blend-difference
• Runs: local render, free
• Aspect: any

Used in

• UGC ad with overlays
• Ad variants for testing
• Captioned talking clip
• Faceless narrated video
• Post-story narration
• Post to video
• Lyric video
• Karaoke video

More captions & subtitles

• Anime JP Subtitles — git clone https://github.com/vargHQ/code2video-templates && cd code2video-templates/anime-jp-subtitles && bash make.command
• Camera Follow Captions — npx hyperframes add caption-camera-follow
• Clip Wipe — npx hyperframes add caption-clip-wipe
• Editorial Emphasis — npx hyperframes add caption-editorial-emphasis
• Emoji Pop — npx hyperframes add caption-emoji-pop
• Glitch RGB — npx hyperframes add caption-glitch-rgb