Ping (itch) (KingOfPing)

Bring diamonds to the center. Ping!
Use a shield, or a black hole thing!
Diamond-matching dots will pop,
Touch the rest: they will not stop!
When you're done there's art to see-
Compete for hi-scores locally!

Includes 8 modes for colorblind,
any less would be unkind: 
Achromatomaly
Achromatopsia
Deuteranomaly
Deuteranopia
Protanomaly
Protanopia
Tritanomaly
Tritanopia