Wonderful application, i stumbled on it while searching for a way to design my own dice for the upcoming Blade runner RPG which will have custom dice (https://www.kickstarter.com/projects/1192053011/) .
Their dice will have a number + a bitmap on the same face. The bitmap will be a small eye, beside the number, representing a replicant eye from the Blade runner movie.
Playing with your app, i was able to add a bitmap, but i can't seem to be able to keep the number. The bitmap replaces the number. Is there any way to have both Bitmap+Number on a face?