Disable or change color of default HDMI login prompt?

I have Volumio running on a RaspberryPi (Raspbian) and connected to a television via HDMI. Everything works fine except for the login that Volumio puts on the television:

Again, that’s fine, I know that I use the webgui to operate Volumio. The problem that I see is that the television uses OLED technology for the screen and that tech is susceptible to burn-in or persistence, something I’d like to avoid.

So my question is whether there is a way to change the color of the text of the login prompt to be black?

I’m comfortable with Linux command line and have PuTTY to SSH, so a config file to edit or something?

You could have a look at this:. askubuntu.com/questions/558280/ … f-terminal