We use a large number of custom objects, and it's getting to the point where seeing the 'custom object' icon is getting a bit ugly for me. I would like the ability to provide a custom icon for these objects.
I would be ok with being able to just select from a template/color selector, if that would be easier for HubSpot to implement.
However, I think it would be much cooler to allow us to upload PNG/SVGs to our file manager and reference those in our Custom Object schema.