Question How to remove the dark background from a Entity name?

Hello, we are currently dealing with holograms. Clearly, you need to spawn an armor stand, make it invisible and give it the desired name. But from now on, in more detail, how can I remove the background from the name?

For example, below is an example of a hologram on CMI. How can I achieve this effect? Please help, I’ve been searching the Internet for a couple of days now and nothing.