Update: new version with application name showing
According to an idea of stepchild, I made a new alternative version of the theme which features only 5 calendar entries (instead of 6) but shows the application name of the highlighted app. This should better suit those who like to see their applications' names on the homescreen.
The homescreen looks like this (the rest of the theme is identical to the original one):
The original version of this theme with 6 calendar entries is still available, of course (see initial posting).