I have not looked at the toolbox in a while.. but if it modifies systemui or framework, then I would say yes it will break things
what is it your wanting to modify that isnt already available in our own tools?
Thanks. Nothing urgent -- this ROM is superb, stable, slippery smooth, great with battery. I've played with some of the theming features and love tweaking items like the searchlight, pulldown animation, status bar icons and background -- all great. What I saw in Toolbox Pro was a fairly enormous choice of custom icon sets for signal strength, wifi, battery and 4G. When I selected one it put up a dialog box with a list of icons that would be replaced if I proceeded. No mention of systemui or framework - just icons. Seems harmless enough on the surface, except that I don't see a way yet to back up existing icons sets so I can revert if desired -- could do this via nandroid or dirty flashing on top of this, but it seems like overkill. More research....
BTW: if I haven't said it enough - this ROM is superb. After owning the toro GNex for 14 months I finally got a 3800 mah battery (Hyperion) for it along with a Seido extended Convert Combo case. This thing is a gorgeous beast now. Sourcery, Apex Pro with gorgeous after-market icons installed via Apex, Beautiful Widgets make this all run beautifully and look fantastic -- and last from 5:30 when I wake up until well into the next day -- with ALL features turned on and heavily used. Incredible -- I'd be hard pressed to let this go now for ANY other phone on the market today. This is excellent.
