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With progress being made on Jonathan Thomas's weather wallpaper plugin being made (http://jtechinda.blogspot.com/2009/04/p ... e-yet.html) I thought of other ways that user might want to change their wallpaper automatically depending on changing events. I would like it if KDE provided the functionality to do so, perhaps through a similar plugin or a new application.

I normally change my wallpaper on Saturday every couple of weeks. I like to change it to whatever holiday is around the corner, dates I have defined in Korganizer.

As an example, usually around a couple weeks before Christmas I change my wallpaper to a Christmas-themed wallpaper, around the summer solstice I change to a summer wallpaper, etc. Of course this depends on the user's local holidays.

Ideally this could be done with date ranges and fuzzy dates as well: every Saturday every 2 weeks of summer (between the summer solstice and fall equinox) choose a random image from ~/Pictures/wallpaper/nature/summer and set it as wallpaper. Of course Nepomuk integration could be a great way to simply choose all images with the tags “summer” and “wallpaper”

This would also have to support user-provided dates like birthdays and anniversaries so on my friend's birthday I'd be greeted with a picture of her and I together.

It might be desirable to change the wallpaper in relation to upcoming events that could help remind the user of that event: 1 day before my dentist's appointment change the wallpaper to an image of a dentist's chair! :-P

A stranger idea would be to change it depending on a random keyword in the user's RSS feeds (provided by Akonadi?): if there's a headline that has the word “space”, change to an image in my ~/Pictures/wallpaper/space exploration folder, or “Firefox” to an image of the Firefox logo or whatever.

This wouldn't be a particularly practical feature but it helps integrate the user's calendar with the rest of the system in a very obvious way. This would help bring the user's attention to their important events in the world.

Great Idea! I would love this!

It should also have to change themes based on events.

So that we can set color themes, fonts, sounds according to events.