Great work on this addon. It's very useful. There is a minor bug, though. If the edit box you put under the backpack frame has focus and you hit escape to close your bags, if you don't have all of your bags open already it will open them instead of closing them. Just a nit-picking thing, you might say, but it'd be good to fix. You could probably do so just by making it lose focus when escape is pressed. Thanks!

Maybe this is counter intuitive of what your design, but what I was wondering if instead of blacking out everything that doesn't meet the requirements of the inputted command, if you could instead shade the square of what you're looking for a different color.

Again, I'm going to mention full stacks of herbs or cloth because that's what my use is for. I'd like instead of everything turning black leaving only visible the full stack, just to have a full stack be shaded w/ a color of my choosing. I'm trying to make this sound clear, but I'm not sure I'm doing so I hope you can understand.

Also, it'd be really really really super cool if it could be setup to do what I mentioned above automatically w/o having to type a command. The ability for it to know when a stack becomes full and change the color of it's occupied square in the bag would be amazing.

I should mention that I'm currently using "Combuctor" as my bag of choice, and I've suggested this very feature to Tuller, but he hasn't mentioned anything about if he'd include it or not - it's ultimately his choice as it's HIS addon, so perhaps he doesn't see the value in it. I also use Mr. Plow for automated sorting. I mention this, because, if I have my bags open, and I initiate sorting through MrPlow, then your addon would need to know that things are moving and would need to recolor the new occupied square of the same stack.

Anyways, that's my dream for an highlighting addon. Hope you find it interesting enough to implement if you're inclined to do so. I'd be immensely grateful.

Thanks,
vpr

instead of putting the itembox like that.
make the "Backpack" text in the main bag clickable, and use that space for the editbox.

once you've used it (i.e. /hl quest) how do you return to normal display?
there appears to be no /hl off or /hl disable.

Can it highlight full stack of say; herbs, cloth, ore, hides, etc?

I think that'd be really useful.