RawTherapee seems to use a custom titlebar. How do I get it to use the system titlebar?
Can you post a screenshot? It uses the system window decoration on my system.
Iām using Gnome 3.30. Hereās what RT looks like:
Hereās what the titlebar is supposed to look like:
It also doesnāt behave like a normal window decoration. I use a Gnome extension that removes the titlebar for windows that are maximized and it doesnāt remove the RT titlebar.
No, itās not possible. It depends on the system if you get a native or a custom titlebar. This is GTK related.
Iāve written plenty of GTK+ apps and they all use the same titlebar as all the other Gnome apps (which are also GTK+).
Sounds you can help to solve this issue. Would be very much appreciated.
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Shure it would look like Gnome app if you design them as Gnome. On other OS e.g. Windows youāll get a native titelbar and never get this one from the screenshot since GTK+ 3.22. The titelbar is designd for general use on different OS and not for a special OS. If RT doesnāt show the Gnome titelbar then GTK is not supporting native titelbars on your system.
EDIT: The Windows decoration is done by the theme in a css stylesheet.
Snippet from the TooWaBlue theme
/*** Window Layout ********/
:not(.popup):not(tooltip) > decoration {
background-color: @winHeaderbar;
background-image: none;
border-radius: 0.416666666666666666em 0.416666666666666666em 0 0;
border: none;
padding: 0;
box-shadow: 0 0.25em 0.75em 0.083333333333333333em rgba(0, 0, 0, 0.5), 0 0 0 0.083333333333333333em @bg-dark-grey;
margin: 0.833333333333333333em;
}
headerbar {
background-color: shade(@winHeaderbar,1.12);
box-shadow: inset 0 0.083333333333333333em rgba(200,200,200,.13);
background-image: linear-gradient(shade(@winHeaderbar,1.14), shade(@winHeaderbar,.86));
border-bottom: 0.083333333333333333em solid @bg-dark-grey;
border-radius: 0.416666666666666666em 0.416666666666666666em 0 0;
min-height: 2.333333333333333333em;
padding: 0.083333333333333333em 0.416666666666666666em 0;
margin: 0;
}
messagedialog headerbar {
min-height: 2em;
}
headerbar .title{
color: @winTitle;
}
/* Window state */
.maximized > headerbar {
border-radius: 0;
}
/* Window in background */
:not(.popup):not(tooltip) > decoration:backdrop {
box-shadow: 0 0.25em 0.75em 0.083333333333333333em rgba(0, 0, 0, 0.3), 0 0 0 0.083333333333333333em @bg-dark-grey;
}
headerbar:backdrop {
box-shadow: none;
background-image: none;
}
headerbar .title:backdrop {
color: alpha(@winTitle,.60);
}
/* Titlebar buttons*/
headerbar button.titlebutton image {
padding: 0;
margin: 0;
}
headerbar button.titlebutton {
margin: 0 0 0 0.333333333333333333em;
background-image: none;
border: 0.083333333333333333em solid transparent;
background-color: transparent;
box-shadow: none;
min-width: 1.5em;
min-height: 1.5em;
padding: 0;
}
messagedialog headerbar button.titlebutton {
min-width: 1.25em;
min-height: 1.25em;
margin: 0;
}
headerbar button.titlebutton:hover{
border-color: rgba(0,0,0,.8);
box-shadow: inset 0 0.083333333333333333em rgba(242, 242, 242, 0.11);
background-image: linear-gradient(to bottom, rgba(100,100,100,.3), rgba(30,30,30,.3));
background-color: rgba(128, 128, 128,.20);
}
headerbar button.titlebutton:active{
border-color: rgba(0,0,0,.8);
box-shadow: inset 0 0.083333333333333333em rgba(242, 242, 242, 0.15);
background-image: linear-gradient(to bottom, rgba(100,100,100,.3), rgba(30,30,30,.3));
background-color: rgba(128, 128, 128,.40);
}
headerbar button.titlebutton.close:hover{
border-color: rgba(0,0,0,.8);
background-image: linear-gradient(to bottom, rgb(180,0,0), rgb(160,0,0) 40%, rgb(130,0,0));
box-shadow: inset 0 0.083333333333333333em rgba(242, 242, 242, 0.32);
}
headerbar button.titlebutton.close:active{
border-color: rgba(0,0,0,.8);
background-image: linear-gradient(to bottom, rgb(215,0,0), rgb(185,0,0) 40%, rgb(150,0,0));
box-shadow: inset 0 0.083333333333333333em rgba(242, 242, 242, 0.4);
}
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There is nothing to solve 
What you call system title bar is NOT system title bar: itās āclient side decorationā (CSD: Initiatives/CSD - GNOME Wiki!), that is widely spread among gnome applications. This allow app to draw itself the title bar, to include specific components (tabs, menusā¦) within.
The title bar used by rawtherapee is the standard window manager title bar: itās rendering will depend on the window manager you use (gnom, kde, xfce, lxde, mateā¦)
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Thanks for the replies. I ultimately found a solution to my problem. I was using a Gnome extension to hide the titlebar for maximized windows. It worked pretty good but didnāt work with RawTherapee. I found a more up to date extension that does work with RawTherapee.
Why donāt you use this button? 
1 Like