LightDims are small vinyl dots that cover the LED’s on gadgets and knock the glare way down. The package includes Original Strength (Color Black) Dims 50- 80% of light -Black Out Edition (Color Black) Blocks 100% of light -Customizable Original Strength 9.5" Solid sheet, (Color Black) Dims 50-80% of light -Silver Edition (Color Silver metallic) Dims 80-90% of light designed to blend with aluminum metallic electronics like apple products. And there’s a 4-pack version you can buy which slips with no product label and the absence of some product information. That seems to be the most economical way to go. It’s what I bought. You get all four LightDims for $13.99 plus 99 cents shipping.
The idea is that they will knock down the light by 60%, there's also Blackouts that just block all the light completely. Amazon link: Lightdims® Get All Four Minimal Packaging. Leo says it's an anti-gadget gadget and a great idea.