The prototype's eyebrows are always rgba(242,247,250,.42) (t4 lines
254, 299, 381, 450, 511, 660). eyebrowLabel set size/weight/letter-
spacing only, no colour, so every call site (settings group headers,
vacation section titles, the ringing screen's snooze label) rendered
at whatever full-opacity default the ambient text theme resolved to.
One factory-level change fixes every current and future consumer of
PluriWaveTypography.eyebrowLabel — no call site needs editing.
S9, Tier 1 visual-fidelity pass (audit id 2521).
FreeTLab