Create color classes for specifics border

[NATHAN76543217]

Hi,

I've just tried jit tailwindcss and it's incredible!!!
You've done a great job!!
I had a problem in tailwind before and I tought that will be resolve with jit but it seems not.
when I do border-b, I can set a value like border-b-[2rem] and that's already amazing, but we cannot specifie a single border color like:
border-b-blue-500
or
border-b-[#FFFFFF]

Do you think it wiil be possible a day?

Thanks for your time and your work,
A French fan of tailwind.