You can also use nail polish - will block some of the light and change the hue. As many different shades of polish available as you can imagine. Some shades block more light than others
Huh. I hadn't thought of this before. I'll have to give it a try, thanks! That's a super flexible and cheap option, and I imagine some of the opaque nail polishes would probably nearly block it.
No worries! Nail polish is one of my favourite "hacks", quite durable so it's good for touching up bike frames (especially chainstays, which easily chip), aside from blocking excess lumens from LEDs.
