Maps and images are now dull, dark

In the middle of a session i was DM'ing, i decided to purchase a roll20 subscription after i refreshed the page, all but 3 of my maps have a dark/dull tint to them that i can't seem to understand how to fix. I found a topic with the same issue from 2 years ago, but don't understand at all how to fix it as described on the page. Can someone walk me through it? or tell me if it's even the same solution anymore? Topic:  Community Forums: Maps and images are now dull, dark and no longer bright when placed | Roll20: Online virtual tabletop

Check the page settings of whatever map you are on. Ensure that Dynamic Lighting is off. If you want it on, reduce the GM opacity until it is a level you are comfortable with. Instructions are in the link. You might be looking at dark areas if no light sources or vision has been set. Check the Fog of War settings of whatever map you are on. Instructions are in the link. Turn it off or clear areas that need to be visible to players. Reduce the GM opacity until it is a level you are comfortable with. Double click on any of your dark graphics. Check to see if it has been tinted with anything other than the transparency checkerboard. If there is a tint, set it to transparent. If this fixes the problem, and you did not tint the image to begin with, it is possible that you have somehow set the campaign default to tint all new graphics. Go to you campaign settings page and set the default tint to transparent. While you are there, you can set the default for Fog of War to Off, if it is On.

Since this happened immediately after you upgraded, and only affected some pages, my best guess is that you are running a module? Many of these have Dynamic Lighting preset on pages that could benefit from them. That would be my first check. If this is the case, follow that dynamic Lighting Help Page link I posted and review the feature. It's pretty cool, and one of the top reasons people choose to upgrade.