I have dug around by looking at css files in my blog, I probably missed it. I did look at a number of css files inside my wordpress install.
I want to highlight days of the month that have posts. Leaving the rest of the days, without posts, not highlighted.
As it is now, a reader has to mouse over the calendar to see if there was a post on a particular day for the current month.
I am using the sidebar widget calendar with Tarski 1.7.1 in WP 2.3
I'm not very good at css, but I did search for 'calendar' in the files.
Thank you for your help.