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I'm using Kubuntu 19.10, with KDE plasma 5 desktop.

I have problems when I run GTK apps, because they like ugly. Here is an example:

enter image description here

I used the same Desktop in other computer and they look fine.

How could I solve that?

Thanks!

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  • @DKBose : I have plasmashell 5.18.1
    – Ommadawn
    Feb 21, 2020 at 12:00
  • @DKBose : I install it via ppa deb http://ppa.launchpad.net/linuxuprising/shutter/ubuntu eoan main . I use several GTK apps like FreeFileSync, for example, and it looks ugly too.
    – Ommadawn
    Feb 21, 2020 at 12:01
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    Looks okay for me, also on 5.18.1: i.stack.imgur.com/QLStL.png
    – DK Bose
    Feb 21, 2020 at 12:19
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    Open System Settings > Application Style and below all the default KDE themes, you should see Configure GNOME/GTK Application Style ... Click on that and then make sure you choose a decent GTK2 theme in the next window.... Not Raleigh!!! I don't know why that is included.
    – DK Bose
    Feb 21, 2020 at 12:23
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    Oh, that's the solution! You can post it to everyone and I'll vote you up! Thanks! :-)
    – Ommadawn
    Feb 21, 2020 at 12:26

1 Answer 1

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KDE Plasma 5.18 has moved things about a bit.

If a GTK application doesn't look proper, please open System Settings > Application Style and then, near the bottom, click on Configure GNOME/GTK Application Style .... In the window that opens, choose a suitable GTK2/GTK3 theme but preferably not Raleigh. You'll see an approximate preview of your choice as well.

Shutter on Kubuntu 19.10 with Plasma 5.18.1

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  • i changed theme from Breeze to Adwaita and then back to Breeze and it looks similar to KDE interface now. Seems like some kind of configuration issue. Nov 18, 2022 at 16:02

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