streaming code blocks in the light theme render near-white text on the
white code card until shiki's highlight lands, then snap to normal token
colors. the pale text is @tailwindcss/typography's pre foreground: its
prose theme styles pre as a dark slab (--tw-prose-pre-code = gray-200 on
a gray-800 bg). we strip the bg for our own code card but the near-white
foreground survives on the container. shiki's opaque per-token span
colors normally hide it — it shows through wherever text renders without
spans: the streaming delay window, the lazy-chunk suspense fallback, and
over-budget blocks that never highlight.
traced on the live renderer: computed color on the wrapper of mid-stream
code was oklch(0.928 0.006 264.531) (gray-200), supplied by the
.prose :where(pre) rule.
fix: prose-pre:text-foreground on the markdown container, so every
fenced path inherits the transcript foreground instead. the utility
layer is emitted after typography's base rule in the built css, so the
override wins by order at equal specificity.