Replace the light-theme modal backing (19e3138, now reverted) with a root-cause
fix: darken the light themes' UI elements for contrast.
- Buttons: the light-theme ImGuiCol_Button overlays were barely-there grey
(5/8/12% black); bump to 13/20/28% so buttons read as buttons on light
surfaces (one edit in ApplyColorThemeToImGui covers all light skins).
- Text: raise --on-surface-medium (60-72% -> 86%) and --on-surface-disabled
(38-40% -> 52%) across the light skins (light, color-pop-light, dune, marble,
iridescent) — the dominant secondary/label text was too faint. Base
--on-surface was already near-black, left as-is.
The active theme is TOML-skin-driven, so the code GetMaterialLightTheme() is not
the live source; edits are in the skin TOMLs + the ImGui-style mapping.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
DanS
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