We aren’t able to add “the assassin” and “Stealth” spinners at the moment.
At the moment it’s possible only add custom :“old skool”, “the pro”, “candy cane”, “valentine” and "wreath.
We didn’t decide to let people create a “restricted color” of builder spinner. We can award the spinner just for win category during map contest event or the special merit for Xgen Studios. if something will change we will let you know.
I already made “Netflix” name spinner. Next time before you do spinner use the search feature.
If you want same name of spinner just admit your spinner type of your spinner name.