This tries to add a bit more color distinction to the randomart
algorithm. As it so happens, half of the randomart examples got
converted to using the new palette, so that's a nice little win.
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
Regenerating the fullsource hash was a bit tedious. Instead, it makes a
bit more sense to use the current commit hash as the header image. This
uses sha1 nibbleart.
Signed-off-by: Alek Ratzloff <alekratz@gmail.com>