Add possibility to cycle through downloaded wallpapers at configurable time?

[raoulteeuwen]

Thank you for this app. I do like being surprised by what wallpaper is shown when i unlock my phone, in the sense that it cycles through wallpapers i like. In your app i can already download the wallpapers i like. Do i need to find a separate app that will cycle through the downloaded wallpapers at a certain frequency (or at every unlock), or could that option be added to your app?