I see dozens of Youtube Videos where people have EVERY gem color, yet I go to that map and only have a few colors. How do I get every color on every map, is it some sort of field i have to beat or what?
the short version Williampcooley is you need to progress more through the game, and that takes time and effort. Read through these forums for help in any areas you have problems on. there is lots of good advice, though sometimes you need to sift for it. There are fields ( the sort of square ones and the triangles that have lines in them instead of circles) that you have to beat to unlock the various gems, skills and battle traits. work your way through the map and you will find them. The last one ( bloodbound if i remember right) isnt until late in the fields you unlock