Customizable Resolution or according to the watch selected.

Please make the watch selected option meaningful.
Automatically set the create watchface resolution according to my watch or make my watchface resolution adjustable to fit my own watch.
My watch is 400＊400. The provided options are in between.
512 will ruin my prepared 400 material and 360 will zoom the output blur.
Also, the watchface preview is just too tiny.
I am backing to MR.TIME.