Buttons and Icons: https://www.flaticon.com/ Understanding colors and corrections: https://flatuicolors.com/ https://coolors.co/ Transparent pngs: https://pngpress.com/ http://pngimg.com/ Background and sound effetcs: https://orangefreesounds.com/ https://soundcloud.com/ UI/UX inspiraiton: https://dribbble.com/ https://www.behance.net/ Please comment if you also have a good source.
Thank you, wasn't aware of some of these. All types of assets: https://itch.io (some assets might not have commercial license, double check each time) 2D & low poly https://kenney.nl/assets Sound FX & Music https://www.zapsplat.com (free licence requires attribution) Textures https://lowlypoly.com/collections/free
