Rework Magic Gems

So far we got only 4 gems:

Magic Sapphire (PA)
Magic Emerald (MA)
Magic Ruby (HP)
Magic Diamond (HR)

Would be nice if we can introduce:

Magic "insert name" (MP) gem
Magic "insert name" (DR) gem
Magic "insert name" (MR) gem

In order to not make new sprites, could be the same sprite of the "contrast" gem but in a different color, for example:

Magic Blue Ruby (MP) - its a ruby sprite but with a blueish color.
Magic Red Sapphire (DR) - its a sapphire sprite but with a redish color.
Magic Yellow Emerald (MR) - its a emerald sprite but with a yelowish color.