So, a little Update!
Jan777 gave me a newer UNOFFICAL version of the Channel and I changed the channel with the new one!
Quote Jan777:
nuke compiled a colorfix version which should work with some games as it is still unofficial
i already got SMG pal working in color on my jap wii
You only have to install the channel, because the older Channel (GeckoOs1.06d) will be overwritten!
NO deinstall of the old one required!!!
Hope you like it!