> small green sticker

Two additional ways to calm an indicator LED are with the modern self-laminating labelmaker tape:

* White tape -- Put 1 or more layers over the LED, to dim and diffuse.

* Black tape -- Use a pin to poke a hole through the tape, from behind, before putting it over the LED. (If there's 3+ LEDs, like on a network switch or server front panel, it will look neater if you measure the pitch of the centers of the LEDs, then use a ruler over the back of the labelmaker tape to match that with the holes. If the back of the tape has two strips you peel off to expose the adhesive, you can use that as a guide for keeping each hole level.)

You could also put black tape over white, but I haven't had to do that so far.