AltAppSwitcher 0.20 Portable

This program brings MacOS-like or Gnome-like application switching to Windows. Use alt + tab to select the active app (not window) and alt + ~ to switch between windows of the active app. Key bindings are customizable.
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Windows Dark Mode Switcher 0.1.3

Windows Dark Mode Switcher allows you to automatically switch between light and dark mode depending on the time of day. It's lightweight and small.
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Johns Background Switcher 5.9.0.9

JBS sits in your system tray (down by the clock) and changes your background at the time interval of your choosing. You tell it where to get pictures from and how to show them – maybe you just want to see one photo at a time or maybe you’d like to see a ‘Snapshot Scrapbook‘ of photos thrown across your desktop. It’s up to you and you never know what’s coming next!
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Auto Presentation Switcher 2.2.0.4

Auto Presentation Switcher — The Ultimate Presentation-Controller for Show-Operators Powerpoint, Keynote & PDF at your fingertips.
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