Remove/shrink hover box on lines in nagvis

[snapon_admin]

Is there anyway to reduce the size or completely remove the box that shows up in the middle of every line in NagVis? I know that the box is a call out to the area where you can hover over the line, but we'd really like to either remove that box or greatly reduce it's size. I found a similar question posted on a different forum, and the solution was to replace the box (which is apparently just a .gif) with a blank .gif the same size. Well, the only .gif files I could find that could possibly be this box are the 20x20.gif and the 10x10.gif. I've tried resizing and even flat out removing these gifs with no change to our nagvis maps. Any other suggestions?

[snapon_admin]

I figured this out, please go ahead and lock this. In case anyone else is interested in this, the correct file to modify for this is located at

/usr/local/nagvis/share/userfiles/images/iconsets

The file is 20x20.gif. It's a 20px x 20px .gif file. I created a new 10x10 gif and replaced the existing file (keeping the name 20x20.gif), cleared cache and now the box is half the size it was.