How to darken freckles semi-permanently?

Hey y'all!! Okay so I have a freckle on my face, literally just one, and I LOVE it. It's so cute and unique. I always darken it slightly with brown eyeliner to make it more evident. I just love having a little quirky thing, you know? I have really pale skin so the freckle is a light brown normally.

But I'm sooo sick of darkening it every day, especially since the eyeliner seems to rub off over the course of a day (would translucent powder help?) — I don't wear any foundation or anything, I just go natural skin. So I've never been really sure about powder — I used it when I used to wear foundation but can you wear powder over no foundation? 😂

I found a fake freckle tutorial and I tried using a spot of eyebrow dye to darken it like the tut suggested for fake freckles, but it just doesn't seem to take :( I'd love any suggestions for darkening it slightly that might last a week or more at a time. Henna? Eyebrow dyes from another brand? if anyone has any ideas 🥲