AOZ Studio V1 (TBD bugs clean/-> V2)

' 256 color screen
Screen Open 0,800,600,256,Lowres
Palette $000000,$FFFFFF,$FF0000,$00FF00,$0000FF
Pen 1 : Paper 0 : Cls 0
Print "this is a test - background color is 0 - black"
Ink 2 : Bar 0,60 To Screen Width,80
Ink 3 : Bar 0,82 To Screen Width,104
Ink 4 : Bar 0, 106 To Screen Width, 128

Wait Key
' Add color 63 (white) to the palette
Palette ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,$FFFF00,$FFFFFF,$00FFFF
Print "this is after white was added in color 63"
Ink 62 : Bar 0, 130 To Screen Width, 150
Ink 63 : Bar 0, 152 To Screen Width, 174
Ink 64 : Bar 0, 176 To Screen Width, 198

Wait Key

Cls 0
Print "Color 0 hasn't altered - just did a Cls 0 again"
Ink 2 : Bar 0,60 To Screen Width,80
Ink 3 : Bar 0,82 To Screen Width,104
Ink 4 : Bar 0, 106 To Screen Width, 128
Ink 62 : Bar 0, 130 To Screen Width, 150
Ink 63 : Bar 0, 152 To Screen Width, 174
Ink 64 : Bar 0, 176 To Screen Width, 198
Wait Key

According to Dave, apparently even if I create a 256 color screen, only 64 colors are defined in the palette.

It sounds like we need to make sure that the size of the palette matches the number of colors defined on the screen.

It's definitely some kind of bug in the Palette command. Other commands can use the palette, but the Palette command itself creates this glitch.