Darken effect does not work on Edge browser

[trajano]

[trajano]

It does not work on Internet Explorer either.
What could be done is to create the images manually, in addition use -quality 50 on the images and make it slightly larger than the target view areas.

Could create a script to do the changes using https://www.npmjs.com/package/mozjpeg-bin

[trajano]

use imagemagick to darken
convert test.png -fill black -colorize 50% colorize_darken.png