1. Prinbles-Silent UI

    https://prinbles.itch.io/silent

  2. Comp-3 Interactive-Retro Windows GUI

    https://comp3interactive.itch.io/retro-windows-gui

  3. Icon:

    From FLATICON:

    Check all the icons used here: https://www.flaticon.com/collections/NTkxMTc1NQ==

  4. Picture

    https://www.flickr.com/photos/jaboney/390315232