Drag and drop the circles to move them. 100% pen. Like "APPLE INC. IOS OPERATING SYSTEM" app selector!
With msx=(1d mouse) from 2d mouse position (calculation of msx). Renders 2d with x,y and mod thingy. 2D inspired by sheep_maker's project "Drag and Drop 2D" . Based on my project https://scratch.mit.edu/projects/225355805/ "drag and drop" .