And to close the Ling trio before we start touching on the rest of the changeling colors, alongside with his brother Pharynx and their Queen Chrysalis, this is our version of Thorax’s reformed appearance. He resemble his original turquoise-ish pallete, and I totally love the work that CrystalCaramel did on his pallete.
 
But back to the headcanon, Thorax got his rank lowered in our verse since in the hive no one out-ranks the queen, and king sounded slightly over the top for our baby boy when he is not originally a royal changeling like Chrysalis is. I hope you like his design and new pallete!