My mother-in-law came by, her phone has switched to "dark mode", because she accidentally did something in settings. There is no way for any regular user to fin

My mother-in-law came by, her phone has switched to "dark mode", because she accidentally did something in settings. There is no way for any regular user to find out that that was not what had happened. She accidentally switched an accessibility feature, but you have to know that that is a thing to even begin to locate it and there are multiple feature that does something similar. The granularity isn't the issue, the discoverability is.