When changin my theme to Graphene, the small popup with info about the event of the day has changed background color, so the text is not readable.
Earlier when I used the Twenty Ten theme I seem to recall that I had several possibilities for editing the calendar settings (aot the language of the text, like Location). Likewise I have earlier set the text and background of the popup window, but I cannot find a .css where these settings are specified.
Have you changed the setup, is it because of the new theme - or am I overseeing something?