Yes, that's one side-effect. I also noticed the traffic charts being stretched as the height attribute for the embed tags is hard coded. By changing them to 100%, they look perfect.
Another thing that doesn't look right is the "Dynamic View" Firewall logs, as they use (for a reason I cant fathom) divs rather than a table. I was going to post another patch for modifiying the embed tags (I've tested it in Chrome & Firefox), however it brought up something that I would describe as a bug:
When patching /usr/local/www/widgets/widgets/traffic_graphs.widget.php, it leaves the original file, which then is picked up by the widget detection function in index.php. The function will also pick up swap files which meant that I suddenly had the traffic graph widget duplicated several times. I ended up having to manually edit my config.xml to remove all the duplicates.
IMHO, the function should only match real php files in the widget directory. ie. ^[a-z0-9_-]+.php$ That probably needs another topic and a possible bug report. I'll also have a look at creating a patch, if only for my own sanity - manually editing the configuration on nano was a PITA!