I'm not sure the colouring of some headerbar buttons in some windows is a good design choice by upstream. In the example in the bug description, the (blue in Adwaita) Extract button is no more important than the non- blue Extract button in the dialog that came before it.
So yeah it's a theme bug that Ambiance is missing this highlighting but also not really a noticeable problem unless you're familiar with other themes. ** Summary changed: - The headerbar action buttons lack contrast + Headerbar buttons that are highlighted/coloured in Adwaita are not coloured at all in Ambiance. ** Changed in: ubuntu-themes (Ubuntu) Importance: Undecided => Low ** Changed in: ubuntu-themes (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1709500 Title: Headerbar buttons that are highlighted/coloured in Adwaita are not coloured at all in Ambiance. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-themes/+bug/1709500/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs