Both SET RESERVED and SET COLOR don't stop parsing when the
color setting is complete. For example:
SET COLOR FILEAREA BLINK RED ON BLACK UNDER BRIGHT
is accepted, perhaps with weird results.
This means, for instance, that the first string of a reserved line can't be one of the modifiers, since parsing eats it... at least for about the first 8 words.
It's obvious that the first words of a reserved line can't look like the *completion* of a color specification, but if the specification IS complete, then everything following should be 'line data'.