I adapt this "Creative Commons 3.0 Licence" of "nobiax.deviantart.com" for CubeEngine2.
There are 12 special textures quality :
It should be noted that three of them are suitable for the translucency and can be used in another context (as, for example, plates mapmodels).
My job was to adapt to CubeEngine2 creating configuration files and manipulating the sizes and image formats.
(Special note for Suicizer I know, I know ... what you will say ! Ok, say it, but I'm not sure you want to start again this discution sterile on the structure and location of the package ! )