Could it be possible to add a function to automatically set a specific wallpaper at nights and another one for the rest of the day?

Thanks.

Thanks for the answer. I found a problem though. You have to have the computer turned on to make those tasks work. For example: if you go to sleep you may have the "night" wallpaper in your desktop but you will keep having it the next day as well (even if it's not night). You could initiate the task on each boot but then how does the task know which script should load? (I have 3 scripts: morning, afternoon and night).

Any solution for this?

It takes like 5 minutes to relaunch a task which has missed the execution on its first try but it's ok. Not a big problem.

Thanks again Keith.