UnleashX overwriting modified files

[datura]

I've been experimenting with skinning my UnleashX and wanted to change the small green Xbox icon that appears next to menu entries without a predefined icon. I found this file under E:\UDATA\9e115330\0064122817A8\xbox4.xbx. I wasn't able to extract the file with XBX tools, so I grabbed the same icon off of the internet, did my work in Gimp and converted it back to DDS then to a 128x128 xbx file. UnleashX opened and displayed it properly in the file explorer and I was able to overwrite the default xbox4.xbx. My issue however, is that when I reload the dashboard, UnleashX overwrites my modified file with the default green Xbox icon, negating my changes. I'm able to set the icon of each menu entry manually, with menu edit, but this has the consequence of displaying the icon over the blue animated Xbox logo, which I do not want. My question is, where do I go from here? Am I able to set the directory where the icon lives to be read-only somehow? If not, how can I go about permanently modifying this file? Thanks in advance.