I want to draw a rectangular frame in a sector of the screen. But I don't want it to be static, I want it to be lively.
I wish it would be completed for about 5 seconds, frame by frame. As you can see in the 16:04 minute of https://www.youtube.com/watch?v=Fb7fFHk5kAU
Similar to the "Paint Designer" tool, but with straight lines and 90 ° angles.
Thanks in advance.