Is the anyway to change the font color for SELECTED songs only PERMANENTLY so that they could stand out? It would be useful during browsing.
I created a "test" virtual tag called TitleColor, and used BPM as the test field (as I never use it):
$IsNull(<BPM>,<Title>,{color: 155,255,64}<Title>{color: default})
I then changed the Set Displayed Fields for "Title" to the name of this virtual tag, in this case, TitleColor.
When BPM has a value, it turns the title green. When BPM has no value, it leaves it with the default color.
You could substitute "BPM" for a custom tag of your own creation, then simply enter any value into the tag to permanently change the colour of the title. You could get a bit more creative and customize colors for specific values by using the conditional $If and nesting the formulas rather than $IsNull, as the latter only evaluates for an empty field.