Colour coding of weekends in the basic view

There is not currently a direct way in Basic view to customize the CSS based on the day of the week, but I could look at adding that in the future.

Basic view was created as an alternative to List view specifically to create a layout where each event is an independent item. You may want to try List view, which groups the events by day. The layout is also different of course, but the treatment with the large block showing the date, and the events listed to the side of it, could be created with some specialized CSS.