Misc curated lists of visual design resources (depending on how interpret question aka no domain target (web, gaming, music, video, arts, robotics, etc)):
Courses to learn UI/UX Design :https://www.toools.design/learn-ui-ux-design
Design Resources for developers : https://github.com/bradtraversy/design-resources-for-develop...
Design Resources for Developers : https://github.com/manishparui/design-resources-for-develope...
Design Reosurces : https://github.com/reinaldosimoes/design-resources
Awesome Creative Coding : (beginner/intermediate) https://github.com/terkelg/awesome-creative-coding
