use metamask exact icons

[Imdavyking]

use metamask exact icons

[Imdavyking]

static Color _genColor(List colors, MersenneTwister19937 generator) {
generator.random();

int idx = (colors.length * generator.random()).floor();
Color color = colors[idx];
colors.removeAt(idx);
return color;

} // correct color algorith for jazzicon.dart