I've had a quick go at installing a logo in JIRA e.g. https://issues.apache.org/jira/browse/JENA-1828
To me it looks a bit blurry. It look fine in the original but not by the time it display in JIRA; some resizing issue probably. I'll have another go if we want the customization.
There again, I have a new 4K screen and lots of things that used to look fine, now don't. The screen is too good sometimes!
(The SVG is in jena-site/content/images)
Andy
