Optimize color palette in patterns

[obasille]

[patter name: num colors in palette / num of keyframes]

Orange to Purple: 38 / 141
Simple: 9 / 119
Colored Twinkle: 154 / 308
Tiger: 273 / 723
Rainbow Falls: 91 / 175
Down and Up: 9 / 119
Circles: 287 / 690
Twinkle All: 10 / 285
Flicker On: 58 / 363
Noise: 19 / 408
Rotating Wide Ring: 4 / 767
Rotating Rings: 271 / 543
Trifold: 8 / 282
Acceleration: 6 / 1200
Rings: 3 / 708
Long Noise: 20 / 761
Short Noise: 15 / 183
Basic: 2 / 60
Dim: 3 / 80
Very Short Noise: 5 / 47
Dimer: 2 / 60

See ColorUtils.extractKeyframes()