The skewed look is because the images of empty dark squares are too big. The width and length need setting to the same as the other squares.
The Camblam 'Knight' actually has the destinations of four simple oblique leapers - the Camel, Zemel, Antelope, and Rector. Regarding the 'pass-through' squares where allies can block it, I assume that they are in the order specified fo a move. Thus an ally up to and including 4 squares away orthogonally will block it from the 2 Camel and 2 Zemel destinations in that general direction, and an ally up to and including 4 squares away diagonally will block it from the 2 Antelope and 2 Rector destinations in that general direction.
The Camblam 'Knight' actually has the destinations of four simple oblique leapers - the Camel, Zemel, Antelope, and Rector. Regarding the 'pass-through' squares where allies can block it, I assume that they are in the order specified fo a move. Thus an ally up to and including 4 squares away orthogonally will block it from the 2 Camel and 2 Zemel destinations in that general direction, and an ally up to and including 4 squares away diagonally will block it from the 2 Antelope and 2 Rector destinations in that general direction.