Board Thread:General Discussion/@comment-26841482-20160312062218/@comment-30068215-20160312093610

I checked other wikia. Wikias with dark backgrounds tend to have problem like this when I review the change in both Source editor and Visual editor. Dark background color automatically changes the text color to white, but the text color and the background color in the change view look similar since the background color in the change view remains unchanged.

So I suggest you to choose the light color for the background.