Thanks for the suggestions jasuk70. You are right, the manual was wrong for those commands, I suspect that there are others as well

. I was having problems getting the autocomplete to work if you press = because I handle the = key as a special case, but it will be in there as soon as I make a workaround. Oh and you can change the way the validator works by editing the Reference.xml file.
For example for lighton I had:
<command>
<word>lighton</word>
<display>lighton=X</display>
<help>lighton</help>
<type>action</type>
</command>
you can change that to
<command>
<word>lighton</word>
<display>lighton</display>
<help>lighton</help>
<type>action</type>
</command>
and it will no longer look for a parameter. You can also change the text in the help tags to customize the tooltip help. I'll put an updated Reference.xml file up for download later on today once I verify some more commands that I suspect are documented incorrectly.