Put "Alt+Shift+End" in the menu next to "Darkroom Mode"
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A recent thread inspired this thread where they're asking how to disable Darkroom Mode due to enabling it and no longer being able to see anything (I think it's the problem where everything becomes solid red). I think if the menu had "Alt+Shift+End" right next to the 'Darkroom Mode' option, then they might have seen that and remembered it and tried it and would not have had such a problem with it.