Hey ... Sry for the late reply. Sadly (at least for you) the answer is no. I created these arrows especially because in my opinion, the vanilla ones are way to bright and big and I wanted something smaller and less bright.
Maybe (but that's a big "Maybe") I am going to add some brighter versions in the future ...

Anyway these can be a bit brighter? They don't show up too well in a Winter Theme. Even once the roads are plowed.

You're welcome Clus :)

Thanks ! :)

These are great...thank you!