[Tilesathome] Colour reduction

[Matthias Julius]

Are there still problems with the 256 colour tiles?

If yes I would take a look at implementing the colour reduction using
ImageMagick or perlmagick.  Theese allow the specification of a sample
file whose palette will be used in the file to be converted.  This
would ensure uniform colours everywhere.

Inconsistent symbols had been identified as an abuse of colour space,
but I also think that many shades come from anti-aliasing.

Matthias