I have somehow hit a shortcut in Altium that causes all of the layers that I am not currently working on to become grey. I can change layers and they are still there. How do I turn this off? It is not "mask level" of layers feature too. I am in footprint editor if that helps.
3 Answers
You are probably in single layer mode. Shift-S toggles it on/off.
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I had a similar problem, but that was due to the board being dimmed down. Was fixed by clicking "Mask Level" and then increasing "Masked Objects Factor" in the box "Dim Control".
For me, I had to click on the Clear button in the bottom far right corner of Altium Designer, next to the Snap and Mask Level buttons.
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\$\begingroup\$ Note: The hotkey for this might be Shift+C. \$\endgroup\$ Oct 7 at 18:22