Aim:
Complete the code that animates a ROI (region of interest) on the image. The ROI should move along the diagonal of the image from the upper-left corner to the lower-right corner.
newImage("animation", "8-bit", 800, 800, 1);
makeOval(0,0,20,20);
Roi.setFillColor("red");
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for(i=0; i<800; i++) {
Roi.move(i,i);
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wait(20);
}