Fonts were copied at load: a later change to a font object never reached the fonts and strings built from it, and a Button's state fonts were names overlaid at draw, so a label measured in one font and drew in another.
In 1.12.1 a font follows one parent (`0x770c60`) under a five-bit inherit mask; each setter clears its own bit and pushes only what changed to its followers (`0x784180`, `0x770910`). A Button holds three embedded fonts and relinks its label on each real state change, after the script (`0x779810`).
Now fonts link live, case-blind by name (`0x64b3f0`), `Font:SetFontObject` links and refuses loops, a Button's fonts are real linked fonts with their getters, and `<NormalColor>`-style elements load (a `Deviation:` for two). Tests cover the push, the masks and each button state; the stock UI draws as before.
Fixes#1204Fixes#1517Fixes#1403Fixes#1855Fixes#1856🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sam Sung
39311b2fc6