Az movement

This is a text-based game. User can view a colored ascii map in their browser and a group of buttons. User can click buttons to determine direction they want their character to move. Characters can circumnavigate world. 
Why are these red/blue/green? Instead of naming a style WHAT it is, name it WHY it is. So instead of "blue-font" you might call it "water", instead of "red-font" you might do "fire", etc.