I have installed Lightning Calendar in Thunderbird. I am using dark theme in Thunderbird, which Lightning takes over, except this little pop up calender, which is strange white background with white text (and thus unreadable). Is there any way to change the colors ?
Also, I would have liked having the days of the week (ie columns) marked with day name (ie, Mo, Tu, We, Th, Fr, Sa, So). Is there any way to do that?