A recent dist-upgrade removed the package `plasma-look-and-feel-org-kde-breezedark-desktop`, and now I have lots of ugly-looking menus and dialog boxes with light-gray background on my otherwise dark desktop.

When I attempt to `apt install plasma-look-and-feel-org-kde-breezedark-desktop`, there are conflicts, and it wants to remove several packages including `neon-desktop` and `plasma-desktop` which I'd rather not remove.

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The following packages will be REMOVED:
  breeze kinfocenter neon-desktop plasma-desktop plasma-integration plasma-widgets-addons plasma-workspace plasma-workspace-wayland sddm-theme-breeze
The following NEW packages will be installed:
  plasma-look-and-feel-org-kde-breezedark-desktop
0 upgraded, 1 newly installed, 9 to remove and 0 not upgraded.


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~$ lsb_release -a
No LSB modules are available.
Distributor ID: neon
Description:    KDE neon User Edition 5.15
Release:        18.04
Codename:       bionic


How do I get the breeze-dark look and feel back?

Hi, I wish whether the system removed the packages or you execute a command execute to remove them. Please, let us now.

I usually use aptitute to install, remove and clean packages, which tell you whether you have conflict whit any packages and ask you to resolve them.

Hope it help, I hope to hear from you soon.

I also have the dark breeze theme installed.
lsb_release -a
No LSB modules are available.
Distributor ID: neon
Description: KDE neon User Edition 5.15
Release: 18.04
Codename: bionic

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$ aptitude why-not plasma-look-and-feel-org-kde-breezedark-desktop
i   neon-desktop Depends breeze
i A breeze       Breaks  plasma-look-and-feel-org-kde-breezedark-desktop (< 4:5.15.0)


Edit:
Version number of available version is to small:

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$ aptitude why plasma-look-and-feel-org-kde-breezedark-desktop
Not currently installed
The candidate version 4:5.14.5-0xneon+18.04+bionic+build25 <== TOO SMALL


Ouch! I have breeze and plasma-look-and-feel installed with the dark theme
apt search breeze
Ordenando... Hecho
Buscar en todo el texto... Hecho
breeze/bionic,now 4:5.15.0-0xneon+18.04+bionic+build26 amd64 [instalado, automático]
Default Plasma theme (meta-package).

apt search plasma-look-and-feel
Ordenando... Hecho
Buscar en todo el texto... Hecho
plasma-look-and-feel-org-kde-breezedark-desktop/bionic,bionic 4:5.14.5-0xneon+18.04+bionic+build25 all
Dark Breeze look-and-feel for Plasma


It seems we have the same packages installed.

Sincerely, I do not know what to say.

The contents of the plasma-look-and-feel-org-kde-breezedark-desktop package have all been moved into the main breeze package, which is why they now conflict as the old one is obsolete and should be automatically removed on upgrade to prevent file conflicts.

Hi, thank you for the post. I did not realize that the package was removed.

I run this command and I discovered the fact about my fault.
sudo aptitude remove plasma-look-and-feel-org-kde-breezedark-desktop
[sudo] password for jochoa:
Package plasma-look-and-feel-org-kde-breezedark-desktop is not installed, so it will not be removed
Package plasma-look-and-feel-org-kde-breezedark-desktop is not installed, so it will not be removed
No packages will be installed, upgraded, or removed.
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B of archives. After unpacking 0 B will be used.

Kind Regards,

By the way, if anyone/-thing wants to see for him-/her-/itself
whether @acheronuk's words are true (of course, they are)

here's the way to check it:

# In PLAIN_ENGLISH: What-replaces-breezedark? breeze!

$ aptitude search '?replaces(breezedark)'
i A breeze - Default Plasma theme (meta-package).

Thanks for all the explanations. Still makes me wonder why several applications have this ugly light-gray (non-breeze) theming, while the rest of the desktop is styled in breeze dark.

• Electron-based applications (Atom)
• Any Java-based applications (e.g., Zotero, the scientific literature manager)
• Firefox

Expected (Dolphin):



Atom (the menus used to be dark):



Zotero (the menus used to be dark):



Firefox (used to be dark too):



All of these had the dark style until a few days ago. I thought the removal of `plasma-look-and-feel-org-kde-breezedark-desktop` was responsible, but given the previous responses on this thread, this does not seem to be the case.

Also check to make sure that the package breeze-gtk-theme is still installed.

NoNameNoBlame wrote:By the way, if anyone/-thing wants to see for him-/her-/itself
whether @acheronuk's words are true (of course, they are)

here's the way to check it:

# In PLAIN_ENGLISH: What-replaces-breezedark? breeze!

$ aptitude search '?replaces(breezedark)'
i A breeze - Default Plasma theme (meta-package).

The information was very usefull, thank you.

It can also be asked the other way:

# In PLAIN_ENGLISH: breeze-replaces-what? <TheAnswer(s)>!

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$ aptitude search '?reverse-replaces(breeze)'
p   gtk3-engines-breeze                - Transitional package for KDE's Breeze
p   libbreezecommon4-5                 - Breeze for KDE4 common library
p   libbreezecommon5-5                 - Breeze for KF5 common library
p   plasma-look-and-feel-org-kde-breez - Dark Breeze look-and-feel for Plasma