Photoshop for ipad how to use drawling as template
This pertains to photoshop for ipad. I want to use a tonal drawing as a template for a line drawing. The ideal would be to be able to make the template disappear from time to time (or better yet become white) so I could see the line drawing against a white background until I am happy with it. Then I would just want to delete the original. Do I need 3 layers or just 2?

