See the xul file in <http://bugzilla.mozilla.org/showattachment.cgi?attach_id=12849>. The image (commented out) doesn't display. Tried several scenarios: <html:img>, in a box, completely outside the deck. The best result I got were a vertical line, IIRC in the color of the background of the image.

I don't understand. In the xul file that is in that patch file (is that the right attachment id?), the chrome:// urls point to images that don't exist in either skin (or anywhere in the tree AFAICT). A simple test with a <deck> containing <image>s works fine, so gotta mark this worksforme (but, quite possibly, I've missed your point ...)

> the chrome:// urls point to images that don't exist in either skin They exist in my local tree. Copy any image to that location or change the URLs. > A simple test with a <deck> containing <image>s works fine Then, the test case was too simple. It did not work for me with in the file I mentioned. Unless the XUL in that file is wrong, worksforme is not a valid solution.

BTW: I'm using CSS now to add that image (which is better anyway), and that works fine.

Yes, this fragment from the patch is extremely complex: + <!--<deck id="mailSendFormatIcon"> + <box/> + <image src="chrome://messenger/content/messengercompose/askSendFormatConvertableYes.gif"/> + <image src="chrome://messenger/content/messengercompose/askSendFormatConvertableAltering.gif"/> + <image src="chrome://messenger/content/messengercompose/askSendFormatConvertableNo.gif"/> + </deck>--> I assume you're not expecting the images to shine through the box.

> Yes, this fragment from the patch is extremely complex: It didn't work rigth either, if I moved the <image> out of the deck. > I assume you're not expecting the images to shine through the box. The box is *not* around the images!?!

John, what do you expect from me? I'm neither qulified, nor do I have the time to create simplified testcases.