Unusuable Item Colors in Bags/Containers?

Forgive me if this has already been asked elsewhere, I did a search and didn't find anything.
When you have an item that is unusable (either class or level restricted) the item goes "dim" (like an ability hotkey that is already in use or is in cool down) The problem (for me) is that when it is dim like this, the item fades almost completely into the background of my bags and is not visible. I wind up have to hover over the bag when it's open over each slot, or just hover over the bag in my character window to see if it's empty.
I have a cobbled together UI, just taking various bits and pieces over the years (a chat window mod here, a breath/casting window there) so I'm completely fine with adding on (I'd prefer not to use an entire suite, those things are a bit too "busy" for me). So if anyone has a suggestion for an interface mod to change the bag background color or somehow highlight those 'dim' items, it'd be greatly appreciated. Thanks in advance!
 
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