changes:
Body marking icons are now cached in SSicon_cache.
Renamed the body-hair cache (used only by Resomi) to make it more clear what it is.
Humans now use SSoverlay for applying overlays, though they force-compile instead of waiting for it to tick.
Fixed a bug where getFlatIcon() did not work properly with SSoverlay overlays.
changes:
Clipboard overlays are now a little gentler on SSoverlays.
Ported potential performance improvements for getFlatIcon and listclearnulls from /tg/.
Icon smoothing now clears the base icon by default; SMOOTH_NO_CLEAR_ICON disables this behavior.
Potential SSoverlays performance improvement from /tg/.
Speculative fix for #2826.
changes:
Cameras now use DVIEW instead of a temporary dummy mob to calculate visibility.
Cameras now render smooth lighting as old-style lights.
Lighting overlays are now a DMI instead of a PNG.
Fixes#1974.