**BUG** Concise problem statement: Steps to reproduce bug: 1) Create simple PCB with pad, track and two solder mask apertures: ![enter image description here][1] 2) View it in Photo View: ![enter image description here][2] 3) Compare with the (correct) rendering when viewed in Gerber Viewer: ![enter image description here][3] Results: Photo View renders Solder Mask aperture over copper **and** over exposed FR4 laminate as copper area. Expected results: Photo View should render Solder Mask aperture over copper as copper area **but** should show exposed FR4 laminate as some other colour (suggest blue-grey). Browser: All [1]: /editor/20171202/5a21ce0262eea.png [2]: /editor/20171202/5a21ce7d680d5.png [3]: /editor/20171202/5a21cf676be62.png