Companion to 59a6b25ff. The accent enum got renamed (cakePrimary,
tronRed, frostingPurple removed; hashGreen, suchPink, suchBlue added)
but ThemeList still referenced the old names. Rename in lock-step:
cakePrimary -> hashGreen
tronRed -> suchPink
frostingPurple -> suchBlue
Plus the corresponding ThemeList static fields (blackThemeCakePrimary
etc.) and switch cases. The integer 'raw' deserialize codes (12-17,
112-117) stay the same — existing user theme prefs will resolve to the
new accent at the same raw value.