You can buy this project and download/modify it how often you want.
<rect> fill modification with redraw suspended. <rect> fill modification with redraw suspended. suspendRedraw(2000) unsuspendRedraw(id) @2s unsuspendRedrawAll() @2s suspendRedraw 1000, 2000 suspendRedraw 3000, 4000 unsuspendAll @2s suspendRedraw 2000, 4000 unsuspend 1st @1s unsuspend 2nd @2s suspendRedraw 4000, 2000 unsuspend 1st @2s unsuspend 2nd @1s suspendRedraw 1000, 2000 unsuspend 1st @ .5s suspendRedraw 3000, 2000 unsuspend 1st @ 1.5s suspendRedraw 4000, 1000 unsuspend 1st @ 2s suspendRedraw 2000, 1000 unsuspend 2nd @ .5s suspendRedraw 2000, 3000 unsuspend 2nd @ 1.5s suspendRedraw 1000, 4000 unsuspend 2nd @ 2s Click on the Rectangles one at a time. The rectangles should change color ~2sec after you click -->
