The scan that replaced the parenthetical-stripping regex went into the Leaflet
overlay and its Mapbox GL counterpart as two byte-identical copies, which is
what the duplication gate caught. trackColors.ts next door exists for exactly
this reason - both renderers read a track's colour through one function so it
cannot come out different on one map than the other - so the cleaner follows it.
Behaviour is unchanged. The test brute-forces the new function against the regex
it replaced over all 55,987 names up to six characters of "ab() \t", and pins the
32k-space input that used to take a second.
Maurice
c435033343