But according to videos the palette seems to be the result of the 8 colours RGB + hi-resolution ditherings, hence being a Software palette.
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* From the demo we can see that the Pasopia 7 is able to produce the 27 colours via vertical lines in 640x200 video of the basic RGB 8 colours.
To dither finely the 8 RGB colours cannot produce more than 27 colours because of redundancy in the result colour from diferent combinaison.
*Opposite colours from the 2x2 2x2x2 (1bit) RGB cube would produce grey
Ex : Black + White = grey, Yellow + Blue = Grey.
*some other mix would produce already existing basic colours
Ex : RED Red + Blue = Magenta, Red + Green = Yellow.
*would only remain :
= 6 intermediary colours : Lime, sky blue, Purple, Sea Green, Orange, Lavender.
= Darker Basic colours when mixed with Black : Dark blue, Dark Red, Dark Cyan...and so on.
= Lighter basic colours when mixed with White : Light red, Light Cyan... equivalent to Amstrad CPC's Pastel colours.
This leads to the 3-level RGB cube generated from the 1-bit RGB cube in high horizontal resolution and CRT monitor effect.
* The same trick may be somewhat possible on the Sinclair QL (256x256x8 may work, 512x256x4 would produce some part of the CPC palette) or NEC PC-8801 (640x200x8) or any machine with basic 1bit (2 levels) RGB palette and 640x200 resolution, using CRT monitor.
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