RainbowSky

Add a rainbow sky to the background.

A weight setting value of about 0.6 seems to be good.

It is recommended to use "Hires. fix" on landscape 640x480 and set to arbitrary size.

As a point of caution ----------------------------------------------------------------------

• Sometimes the image may be only the background.

• Sometimes the rainbow may not appear.

• If you don't see the rainbow, increasing the weight settings may help.