[PR] Contributor Rewards accessible to all

[mintyphresh]

The image Zamu posted with the bright-ass colors is being inspected a lot here, so here's a more descriptive image of what the PR allows, attempting to cover a wide range of saturations, values, and hues. 2, 3, 5, 6, and 8 are all at the border of allowable colors, as per this PR's restrictions.