1/ Yes, It looks like a cache of your browser, I do not see the space – https://prnt.sc/mF4tdGE39D3e https://prnt.sc/7nEN6CnDSedU
2/ There is no such option, unfortunately. You can change the header background color only.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.