Question: why Constants.types.POLYGON is used when calling activateUIButton?

[ericxinzhang]

Question

Why Constants.types.POLYGON is used in onSetup when calling the activateUIButton?

I am asking because I implemented drawing polygon and circle on map using mapbox-gl-draw and maplibre-gl-draw-circle, the money patch so as to add a circle button into the existing toolbar.

I created a demo here.

However because the POLYGON constant is used, now when I click on my circle button, the polygon button shows as selected (with the active class). Was it because mapbox-gl-draw (specifically ui.js) does not really support custom mode?