[Fixed] Error at deck creation

[IndridKold]

I went to create a deck that was completely artifact so I didnt select any of the colors and it gave me a Runtime Error.
Suggestions to fix it:
Add a Colorless option to the list to pick from
Add code that allows a deck to not have any colors

Either or both of these suggestions could designate that particular deck as having no color an therefore be given a box with some sort of gray shade to attribute the colorlessness of artifacts.

[Gary]

Righto, didn't realise it returned an error if you don't select anything, I'll work on this when I get a chance.

[Gary]

This no longer errors and instead makes your deck "colourless" and whenever a colour would normally be shown a grey colour is shown instead.