Dropped the Coverage lens and its dark-unmapped framing. The Board is now
a pure demographic instrument: three lenses (median income, population,
poverty rate), every one coloring all 3,109 counties — no darkness, no
'not yet mapped', no fog-of-war copy. Rail shows Districts (363) instead
of 'counties lit'; the ledger describes the demographic lenses.
Also removed the load-in fade, which was flashing the map black on first
paint — it now renders fully colored immediately.
Verified in-browser: income (green) and poverty (amber) choropleths both
render full-country; lens switching and hover readout intact.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Fabio
41ec4bf173