Multiple AH.commers have stopped briefly in them. (Although come to think of it I once stayed in Biloxi overnight, so Mississippi might should be in orange anyway.)
I lived in Shangdong and have been to Beijing, Jiangsu and Zhejiang. Have been to the Bohai sea side, but suppose we need a color box for sea information to display that.
I personally have only lived in one place and been to places in the states and Canada so my only personal contribution was BC multiple visits
However I have updated the colors for Wolfram(Mississippi), ThirdMan2005 (South Australia), wzspring (Shangdong, Jiangsu and Zhejiang), and S. Marlowski (Wisconsin)
Also I noticed the US County version which I def could contribute to so here: