[Drumstix42]

Ok, well I have the image overlay progressbar working completely on my end. It's kinda sexy, too.

However....
I noticed something in the UIBuilder when working on this and was hoping it wouldn't happen in-game, but it did. Progressbars with a low number (ie: 0.005) seem to round down?
In a nutshell, spells with longer recasts will display the progress bar as being depleted earlier than they should, and thus upsets the whole image overlay.

The depleting red bar will switch to a green bar before it should. I tried it on a 4 minute and 33 second recast spell (273 seconds) and the greenbar showed up 8 second too early. That's 0.029 technically, or 2.9% of the time too early. An hour long recast would then show up over a minute too soon. This is not good.

So.... kinda stuck here.

The good news? You can have a 2 pixel high bar "ABOVE" the hotbar numbers without covering them. Text doesn't sit quite so close to the top. Can probably even go to 3, but 4 would be pushing it. You could probably also put it at the bottom without fear of covering the "item charge" numbers.

Notes.... with an always visible filter (dynamicdatafilter: FFFE) the bar stays visible, but this also results in the bar showing for icons that are blank, and maintained buffs, however this isn't too bad. I just tied the bars to the Titlebar being visible, and I keep most of my "maintained" and other icons on the same hotbars.