Add config option for stylus images.
Add config option for stylus images.

Closes #145.

brunch/brunch,hellyeahllc/brunch,ondreian/brunch,justinwoo/brunch,hayesgm/brunch,lalomartins/brunch,Flaise/brunch,rlugojr/brunch,kidaa/brunch,PeterDaveHello/brunch