Working with the Solder Mask Expansion Design Rule on a PCB in Altium Designer | Altium Designer 17.1 User Manual | Documentation
Top layer and Top solder layer Altium - Electrical Engineering Stack Exchange
Is it possible to change board colour in either PCB (top image) or multiboard (bottom image) editor? Need some consistency of colour for a demonstration video. Online searches just bring up how
Avoiding solder mask in certain region in Altium PCB design - Electrical Engineering Stack Exchange