Different thickness title bars between gtk3 / gtk2 applications

[Cristiano Fraga G. Nunes]

I'm using Ubuntu 20.10 (beta).

The title bar thickness is different between gtk3 / gtk2 applications.

Gtk3 applications have a thicker title bar. I think all thickness must be the same to keep the visual identity of the OS.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: gnome-shell 3.38.0-1ubuntu2
ProcVersionSignature: Ubuntu 5.8.0-20.21-generic 5.8.10
Uname: Linux 5.8.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu48
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 3 02:16:27 2020
DisplayManager: gdm3
InstallationDate: Installed on 2020-10-03 (0 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Beta amd64 (20200930)
RelatedPackageVersions: mutter-common 3.38.0-1ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.default.apport:
 # set this to 0 to disable apport, or to 1 to enable it
 # you can temporarily override this with
 # sudo service apport start force_start=1
 enabled=0
mtime.conffile..etc.default.apport: 2020-10-03T01:41:41.633547

[Cristiano Fraga G. Nunes (cfgnunes)]

In Ubuntu 20.04 there is no such problem: all title bars have the same thickness.

[Daniel van Vugt (vanvugt)]

It's not a new problem. I can see the same issue in 20.04 right now.

I'm not sure it's a bug though... GTK3 titlebars are functionally different to GTK2 titlebars.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Carlo Lobrano (c-lobrano)]

Hi, gtk3 does not have titlebars, those are headerbar and I think we should not compare them. The relationship is more between gtk3 headerbars and gtk2 titlebars+menubar, so if we make titlebar as tall as headerbar we will just end up wasting space (considering that headerbar are already quite thick, maybe too much, in my opinion).