Galaxy Color Randomizer Crashing

[RossParse]

I believe the func randomize_colors for Galaxy needs to have it's values changed from 6 -> 7. This stopped the crash for me:
func randomize_colors():
var seed_colors = _generate_new_colorscheme(7 , randf_range(0.5,0.8), 1.4)
var cols = []
for i in 7:
var new_col = seed_colors[i].darkened(i/7.0)
new_col = new_col.lightened((1.0 - (i/7.0)) * 0.6)
cols.append(new_col)