Custom Tooltip API

Full Changelog

5.0.0+1.21.1

This release introduces native dynamic translation support and a major structural refactoring of the API.

BREAKING: API CHANGES

• If you're a developer, please read the entire changelog in GitHub.

New Features

• Added native Translation Key support! You can now use the <translate:your.translation.key> block directly inside your custom text.
• Tooltips using translation keys will instantly update if the player changes their language in the Minecraft settings menu.
• Added full support for Animated Tooltip Backgrounds! You can now place .png.mcmeta files alongside your custom backgrounds in the backgrounds folder, and they will be displayed as native animated textures.
• Added a new configuration file external_backgrounds.json5. This allows users to cleanly add external textures (or scan entire folders) from other mods or resource packs directly into the GUI dropdown for custom background selection.

Fixes & Optimizations

• Optimized resource pack generation: Custom textures and fonts are no longer aggressively rewritten to disk on every startup if they already exist, significantly reducing I/O operations
• Cleaned up internal background rendering code