Changes
/* Colours */
This explains why in some games rocks and stone are coloured in other shades to get a good colour layer with more than 3 shades (black, grey and white).
Many graphist used only coloured flashy bold colours as it was often reproached but by other 8bit fans (C64...).
But a clever choice in said colours could also give good results too in Pastel shades.
Yet Amsatrad CPC had clearly a better paletter than Speccy and C64.
