Thanks @Rob , overlay or underlay ? Actually that may be a good feature of it also. Allowing the user to toggle. Start as underlay, but as things get styled out and the mockup is covered up - allow the user to switch to overlay with transparency setting to test how things match vs their design when they get it styled, images placed, etc,. Sorry just random ideas being thrown out, but hopefully the Pinegrow team get the gist of the idea.