Changes
/* various symetric obliques */
===various symetric obliques===
those can tend to look messy, especially in Mode0.
**Chicago 90 : the horizontal plane has a 10x6 X10xY6 diagonal oblique, meaning the libnes lines looks irregular, and and it looks slightly less flattened.
**BAM : an amateurish game published in amstrad100% french mag. the ratio is X6xY2.
**Binky : ratio = X12xY4 (mode0 : X=2+2+1+1pixels, Y = 4)
===Asymetric===
