Replaces the prior Premium-Solitaire palette and ad-hoc constants
with the full Terminal (base16-eighties) token set: near-black
surface ramp, cyan primary CTA, lime/lavender/gold/teal/pink
semantic accents, 5-rung type scale, 7-rung 4-multiple spacing
scale, 3-step radius, 14-rung z-index hierarchy, and a complete
motion budget. Card drop-shadow alphas pinned to 0 — Terminal
depth is 1px borders + tonal layering, not box-shadow.
Tokens stay as `pub const` so static contexts (default Sprite
colours etc.) keep compiling; a future UiTheme resource can layer
runtime switching on top without breaking the constant API. Four
unit tests pin the spacing/type/z-index invariants so a careless
edit can't silently break the scale. Plugin-by-plugin migration
to consume these tokens follows in subsequent commits.
Spec: docs/ui-mockups/design-system.md
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
funman300
0d477ac9fd