Termite - changed cyan.
Ncmpcpp - changed colors.
4chan - added sticky & closed icon; font size is now specified once; added global message and banner (both collapsed to icons); fixed hidden threads and hidden posts; changed post background to subtle stripes; changed qr handle size; fixed code blocks.
Forms - rewritten; styled select drop-down, styled other form elements (mostly without !important so it can be styled by websites).
Xul - fixed tabview icon.
Utils - colorized diffs, option for diffs in reverse.