Wireshark-dev: Re: [Wireshark-dev] Column header highlighting.

From: Gerald Combs <gerald@xxxxxxxxxxxxx>
Date: Mon, 7 Mar 2016 16:10:11 -0800
On 3/4/16 1:27 PM, Jakub Mazur wrote:
> Hello,
> 
> my 1st mail on this group thus I'd like to say hello to everybody :)
> 
> And my question as I'm not familiar with QT yet: which part of the code is
> responsible for changing  a background color of a column header (e.g. No.,
> Time, Source, Destination, Protocol, etc. ) when a mouse pointer is placed
> over the header?

That part of the code is called "the Qt library, specifically QHeaderView." You should be able to change the packet list column header background using a stylesheet[1] or by subclassing QHeaderView and overriding its drawing routines. We don't currently do either. 

[1] http://doc.qt.io/qt-4.8/stylesheet-examples.html#customizing-qheaderview