You can convert your images into 8-Bit with photoshop.
Open your
From your Photoshop panel
Image – > Mode – >Indexed Colour
Choose -> 256 colour (try with your own combination and preview it)
Than Save as .bmp
Tag: Graphic
Teufel Hunden
Monalisa At War
The Picture originally taken from here
Hongkong Street Graphics
Hongkong Street Graphics