created a red textbox texture and set up the border and textbox to fade red-white as if a dual-color card.
added a casting cost, using red, white, and red/white
converted the card to a hybrid background instead of just the hybrid border, and made the bars grey to differentiate.
made it a have the "enchantment" frame overlay too
wrapped the card content in a dedicated <g>
implemented a static 'sort' method on ManaColor that will sort a collection of colors according to the magic rules.  The rules cannot be expressed with a Comparator, as the answer about a specific comparison can partially depend on the other colors in the collection, and the sort method accounts for that.