BlueMenta/Menta/GreenLaguna theme: Blank "Close" button in dconf-editor

Related issue: #102

Solved themes

GreenLaguna

See my PR: https://github.com/mate-desktop/mate-themes/pull/321

Themes

Affected

GtkTheme in these themes are affected.

Screenshots from the window borders of themes that are affected in mate-themes:

BlueMenta and Menta (idential):

GreenLaguna:

Not affected

Themes that are not affected in mate-themes (that can be used to fix the affected themes):

• BlackMATE
• Blue-Submarine
• GreenLaguna
• Green-Submarine
• Greybird
• Greybird-dark
• High Contrast
• High Contrast Inverse
• TraditionalGreen
• TraditionalOk
• YaruGreen
• YaruOk

Expected behaviour

There's should be a symbol in the close button for the dconf-editor window.

Actual behaviour

There's no symbol in the close button for the dconf-editor window.

Steps to reproduce

trisquel_11.0.1_amd64.iso live mode

• No need to run sudo apt-get install dconf-editor mate-themes -- both packages are installed in Trisquel live mode
• Change the theme: BlueMenta, Menta, or GreenLaguna -- the symbol in the close button for the dconf-editor window appears as it should for each theme. In the steps below I use BlueMenta for demonstration.
• Open dconf-editor

ubuntu-mate-24.04.2-desktop-amd64.iso live mode (upstream issue)

Disclaimer: I describe the Ubuntu MATE upstream issue instead of Trisquel as an example here; Former MATE developer raveit65 claimed that the problem did not exist in mate-themes version 3.22.24 in Redhat as it does for Ubuntu MATE but did not specify which distribution version he tested. He later became frustrated when I asked whether he had closed and reopened dconf-editor after running the command gsettings set org.mate.Marco.general compositing-manager false and ultimately deleted the original issue I submitted (see issue #306 on GitHub) without any warning. Reconstructing the issue here took time. Due to this experience, I will not be resubmitting the issue on GitHub, as I cannot risk it being deleted again. If this isssue it is going to be re-submitted to MATE's GitHub then it's better to wait and evaluate Ubuntu MATE 26.04.

• sudo apt-get install dconf-editor mate-themes
• Run mate-appearance-properties -p theme
• Change the theme: BlueMenta, Menta, or GreenLaguna -- the symbol in the close button for the dconf-editor window appears as it should for each theme. In the steps below I use BlueMenta for demonstration.
• Open dconf-editor

• Uncheck "Show this dialog next time." and click on the "I'll be careful." button

• Run gsettings set org.mate.Marco.general compositing-manager false -- the border of the dconf-window is modified when it is changed for the opened window for the current session, but the close button is still not not blank:

• Make the composition-manager setting take effect on the applied theme (this is important, otherwise the close button will not disappear!):

  • Close dconf-editor
  • Start dconf-editor, and observe that the close button now has disappeared:

Steps to reproduce the behaviour

See Actual behaviour.

MATE general version

1.26.0

Package version

For Trisquel 11, Trisquel 11 in live mode, Trisquel 11.0.1, and Trisquel 11.0.1 in live mode

$ apt-cache show mate-themes
Package: mate-themes
Architecture: all
Version: 3.22.23-1
Priority: optional
Section: universe/x11
Origin: Ubuntu

For Ubuntu MATE 22.04:

$ apt-cache show mate-themes
Package: mate-themes
Architecture: all
Version: 3.22.23-1
Priority: optional
Section: universe/x11
Origin: Ubuntu

For Ubuntu MATE 23.04:

$ apt-cache show mate-themes
Package: mate-themes
Architecture: all
Version: 3.22.23-1
Priority: optional
Section: universe/x11
Origin: Ubuntu

For Ubuntu MATE 24.04 (upgraded tested 2025-05-06):

$ apt-cache show mate-themes
Package: mate-themes
Architecture: all
Version: 3.22.24-1
Priority: optional
Section: universe/x11
Origin: Ubuntu

Upstream issues

• MATE:
• Ubuntu/Ubuntu MATE: https://bugs.launchpad.net/ubuntu/+bug/2031663