Auto Themes

Maybe I am lazy but I think it would be cool if there was an option for Better Canvas to automatically switch the Themes you have favorited/saved. A couple of options could look like:
1. Switch to a random different theme from a Fav/Saved every new session.
2. Switch to a random different theme from a Fav/Saved once a day/week.

3. Switch to a specific theme depending on the time of year. IE for seasonal themes set a specific theme from Fav/Saved halloween theme from 10/1-10/31, a fall theme from 11/1-11/30, and a winter theme from 12/1-1/31.