Relative line number dimming?

[abatilo]

I would love if instead of beginning/end of paragraph, could I just say I want the previous 5 lines and next 5 lines to be colored? And it's just a sliding window.

[dnaaun]

This should do what you want. Adjust to taste:

let g:limelight_paragraph_span=5
let g:limelight_bop = '^'
let g:limelight_eop = '$'