Image transparency

How do we make the images (not the slider images) that we put into the websites less dark? All of them have a grayish / black color that darkens everything. Can we make it so the images are just as is (their color)?


please use this in a child theme or simple css plugin:

.overlay {
  opacity: 0.3 !important;

Just use a number between (and including) 0 and 1.
1 means 100% opacity, 0.5 means 50% and 0 hides the overlay.