#36 Transparency with color key

[Wojtek Dabrowski]

Using an uncompressed tif file, I created a set of
tiles and a cursor sprite with krspriteed. The
transparency was defined via color key. In the sprite
editor, the center of the cursor sprite was
transparent. In krencoder, it was grey, and in the
program, it wasn't transparent either.

This happens both if the image is loaded in the sprite
editor via "image foo.tif #color", and if the
transparent color is added later, from hand, in the xml
file.

The problem also occurs when the tiles and the cursor
sprite are in seperate, non-compressed tif files.

It does _not_ occur if the tif file containing the
sprite is using alpha channel. Transparency works fine
then.

I haven't tried to reproduce this error on other filetypes.

A zip containing the tif file and the xml file has been
attached.