I'm not sure quite what's caused it, but it was something to do with switching decor on/off multiple times - two of the three windows I was decor-switching have done it: now the decor draws in unfocused state fine, but focused state doesn't update the decor properly - all but the font(-color) stay as if unfocused.
This happened to Ximian Evolution and an XTerm, but not the galeon window I was doing the same to... -- Brought to you by the letter "D" and the number 2
