kanger subbox mini case with logo (vent)

I added the vent for battery in the form of the original kangetech logo. I used windows stock apps called "3d builder" and "Paint 3d", thus the .3mf file format. I exported 3mf as stl in "3d builder" app, but haven't printed this yet so not sure if supports are needed. Probably use 10% infill as heat is a primary concern and we need as much heat escaping the battery as possible (thus the vent).