When using the Eclipse theme editing and XML file in Cloud9 the comments look exactly like the opening and closing tags.
For example in the following picture the pointed div is the only line of code which is not part of a comment, but everything else is and you can't visually determine that.
I suggest using the color #bbb for comments. This is how it should look
No images available.
The new Skitch understands that when you share pictures you want to make them private for some reason... Any way I've updated them
eclipse seems to use green instead,
also our theme doesn't have a color for invisible characters, shouldn't #bbb be used for that?
fix #1027 Eclipse XML bad color