What do the Default etc options in colour palette mean?

Sorry to trouble you, but I haven’t been able to find in the User Guides what the four options below the colour palette mean. I’ll attach a screenshot: I’ve circled in blue the options I reference.

I have tried selecting each, but nothing differs in my card colour as I switch between the 4 options, so I just cannot figure out what purpose they serve.

Thanks very much.

The “default” language means that by default the highlights will take on the properties displayed.

The three options are:

  • Framed and highlighted
  • Just highlighted
  • Just framed

This is how the highlight appears when you highlight text.