Light/dark theme support: dual CSS compilation, toggle runtime, highlight-style, brand pairs (bd-0pic6) - #537

Open

cscheid wants to merge 10 commits into

mainfrom

feature/light-dark-theme

Commits on Aug 14, 2026

light-dark epic: design doc (bd-0pic6)

cscheid
and
claude
committed
b4558ae
light-dark A1: ThemeConfig grows a parsed dark variant (bd-ld-a1-data-model-a12bhj1g)

cscheid
and
claude
committed
b3bf221
light-dark A2: compile both theme variants + color-scheme emission (bd-ld-a2-dual-compile-ds10l5wa)

cscheid
and
claude
committed
85bc570
light-dark A3: attributed stylesheet links + color-scheme meta (bd-ld-a3-link-emission-ruw9kw4v)

cscheid
and
claude
committed
96251a2
light-dark A4: color-mode toggle runtime (bd-ld-a4-toggle-runtime-0t9i2rvs)

cscheid
and
claude
committed
3d3872c
light-dark A5: large-project end-to-end verification (bd-ld-a5-quarto-web-e2e-bzg4o5lc)

cscheid
and
claude
committed
2b1235c
light-dark B: highlight-style reader + a11y palettes (bd-ld-b-highlight-style-jnb036fz)

cscheid
and
claude
committed
f3537c9
light-dark C: brand light/dark seam (bd-ld-c-brand-seam-wef8ww3n)

cscheid
and
claude
committed
ef774d9
light-dark E: cleanup + user-facing docs (bd-ld-e-cleanup-qxidnkng)

cscheid
and
claude
committed
c160ec8
light-dark: record phase D deferral + design options in the plan

cscheid
and
claude
committed
dd2486d