Headline KPI tiles are now tinted cards: a soft colour wash, a corner glow and
a left accent bar, each tile its own hue (QSOs blue, calls teal, DXCC violet,
continents orange, confirmed green) — the number itself stays in foreground ink
for full contrast on every theme. Chart cards gain a soft shadow and a coloured
dot in the header matching the section.
Charts are no longer all-blue: BY MODE colours each bar by the categorical
palette (modes are real categories, like the continents donut), and the other
horizontal-bar charts take their card's accent (top entities green, operators
violet, stations orange) instead of a single blue. Single-hue-per-series
discipline is kept; only genuine categories get per-bar colour.