Allow custom CSS

[Eepsquared]

I want to be able to edit the CSS for the Hoverzoom popup window. First, the image counter (#/#) white text on no background is hard to see on white backgrounds. I also don't like border-radii, white backgrounds, and most padding/margins so I want to remove them as much as possible in the popup window's bottom caption with tags and image name. I tried editing the version #/css/*.css files but Chrome will disable the extension and claim it's corrupt (it's not) when I edit them.

[extesy]

@Eepsquared As a simple workaround you can download this repository locally, make any changes you want, and load it in Chrome ("load unpacked" button) by enabling its developer mode.