What it does: On /friends/add.bml, when modifying an existing friend, one gets "Red, Darkest" for foreground and background colors. Friends fg- and bgcolors were changed to integers to save space, but the logic on this page still treated it as a string (#RRGGBB). This patch converts the color codes to integers before comparing them to the saved (or default) fg- and bgcolors.
Test: Test it on my goathack. Sign in as test/test and go here: /friends/add.bml?user=bradfitz, /friends/add.bml?user=lucretio. Add friends and mess around with this.