Use the slider and the buttons to adjust how much of a circle/square it is and its radius. R is radius S is how much of a squircle it is 0 is circle 1 is square. Once you do that click the green flag to make the squircle.
This is not very efficient so it takes a while on high R values and has a lot of lag spikes. I made this by myself as a one day project at school. This is just a simple project for fun and for the I ❤️ squircles studio. I am also still working on the chess game thing and will release a WIP soon.