This is a color-sequential version of TestUFO Moving Photo.

These images are displayed in one primary color at a time (red, green, blue) rapidly, one color at a time, to create temporal color composition. This is a great example of the rainbow effect that is visible on almost any display (especially when moving eyes around). The rainbow effect artifact is normally found on single-chip DLP projectors, especially of slower color wheel speed. However, this software-based color sequential operation also makes rainbow artifacts visible on non-DLP displays too!

The higher the refresh rate of your display, the harder it will be to see the rainbow effect.