I've got this feedback quite a few times, so I'm going to bump configurations up on the roadmap. I think proper vimrc configs might be impossible unless I swap out some of my libraries.

I should provide the ability to disable relative lines though

I'd echo that "what am I even aiming for" was an initial confusion for me as well. The targets are pretty subtly styled and it took a few rounds of looking to realize it was already there. Also found it confusingly visually similar to the matching-brace/paren/bracket markers. And I'd say I have sharper eyes than most. I imagine even mildly color-blind people will struggle.

Changing to a more distinct color for the targets could already help a lot to improve on those parts I think.

I couldn't figure out what targets were either. simple fix is to put am example yellow square in the sentence inline.

Oh that's a great suggestion! I was adding a bit to the description, but I should provide an example too.

Are there any other configurations that people want to have? I can try to do a number of them manually.

I think a choice between standard/relative line numbers would be nice to have because that choice potentially affects your chosen motions