Rawns/Reddit-Wallpaper-Changer — reverse-engineered prompt

Build me a simple Windows desktop app that automatically finds fresh wallpapers from Reddit and rotates my desktop background on a schedule. I want to be able to choose which subreddits it pulls from, set how often the wallpaper changes, and optionally limit results to a certain time period like recent or top posts from a range. It should download the images it uses, keep things lightweight, and clean up old wallpaper files so they do not pile up forever.

Please include a friendly settings screen and basic lists for wallpaper history, favorites, and a blacklist so I can avoid images I do not want reused. Make sure the random selection works properly and the app feels stable for everyday use on Windows. If an installer is appropriate, set that up too so it is easy to install. If Reddit access or scraping rules have changed, look up the current docs online and make whatever practical adjustments are needed while keeping the same overall behavior.