Refactoring of block.imprint.
tree0f31c4a771f31579c5e3dbcec85b4c24a3bba8c1
-rw-r--r-- 35149 COPYING
drwxr-xr-x - dox
-rw-r--r-- 26971 gbg.bas
drwxr-xr-x - gfx
drwxr-xr-x - variations