It's just a normal font that I can change the color and border of. The font color is currently a light blue (almost white) while the border is set to the darker turquoise, which gives it some contrast but probably not quite enough. That could be changed, or I'd also be able to add a subtle background to it that wouldn't be very obtrusive but would help separate it from whatever's behind it more. I'll take a look at improving its visibility in the next few days once I have some more free time to work on these things.

If you've got any particulars in mind feel free to let me know. I could even have multiple versions to select from that are styled differently, so you'd have one that fits the in-game UI and another one that doesn't but is more easily visible.