Greetings.
Thanks for the report. This issue is caused because I had hardcoded the value to draw the offhand attack text/dark rectangle to offset from the first one by 30 pixels. The standard padding is 32, if I'm not mistaken, and to make room on the default resolution screen, I shrunk it by 2 pixels, and injected the offhand line using the extra space that afforded.
I can push an update that un-hardcodes this value, allowing you to specify it in cases like yours, where you've changed the default line spacing to make up for a resolution change and/or larger font choice.
Alternatively, you can manually make this change. Between lines 1205-1257 there are several calls which reference a 'y+30'. If you change that 30 to something slightly larger, it will shift the line down a bit. Fiddle with that number until you get equal spacing between the Off Strength line and the Toughness line below it and you should be good to go.
Edit:
Turns out, I had a few minutes, and since I'd already went to the trouble of finding out which lines to change, I went ahead and fixed it in v1.34. I have just uploaded the updated menu extension plugin, you can download it here.