I shall now download what is presumably a - what shall we say, refined and polished? - new version.
hehe, if deleting one line from the code is polished, then yes
What made you put the Low setting at the top and the High at the bottom?
no reason, other than the fact that it seem natural to me, eg low/high, left/right, up/down, etc.
there is nothing to say the settings gui needs to be in that format, it was just easy and generic. If you wanted to reverse the layout, or put it side by side, or in something more esoteric that's potentially all doable, it's really up to you.
I included the source so you can look at the code and have a play if you're inclined, otherwise just post your preferences and I'll see what I can do