This bug was fixed in the package ubuntu-themes - 16.10+18.04.20171114-0ubuntu1
--------------- ubuntu-themes (16.10+18.04.20171114-0ubuntu1) bionic; urgency=medium
[ Andrea Azzarone ] * Fix osd progress bar look. (LP: #1724808)
[ Carlo Lobrano ] * Ambiance, Radiance: fix horizontal linked suggested-action and destructive-action (LP: #1721102) * Ambiance, Radiance: Fixed border in switcher widget (LP: #1719355)
[ Marco Trevisan (Treviño) ] * Ambiance, Radiance (gtk2): remove undefined "murrine-scrollbar" from mate panel (LP: #1723422) * Ambiance, Radiance: add theming for headerbar .destructive-action button's (LP: #1726318) * Ambiance, Radiance: Use inverted gradient for button actions in maximized titlebars (LP: #1726322)
-- Marco Trevisan (Treviño) <mail@3v1n0.net> Tue, 14 Nov 2017 17:50:15 +0000
This bug was fixed in the package ubuntu-themes - 16.10+18. 04.20171114- 0ubuntu1
--------------- 18.04.20171114- 0ubuntu1) bionic; urgency=medium
ubuntu-themes (16.10+
[ Andrea Azzarone ]
* Fix osd progress bar look. (LP: #1724808)
[ Carlo Lobrano ] -action (LP: #1721102)
* Ambiance, Radiance: fix horizontal linked suggested-action and
destructive
* Ambiance, Radiance: Fixed border in switcher widget (LP: #1719355)
[ Marco Trevisan (Treviño) ]
* Ambiance, Radiance (gtk2): remove undefined "murrine-scrollbar" from
mate panel (LP: #1723422)
* Ambiance, Radiance: add theming for headerbar .destructive-action
button's (LP: #1726318)
* Ambiance, Radiance: Use inverted gradient for button actions in
maximized titlebars (LP: #1726322)
-- Marco Trevisan (Treviño) <mail@3v1n0.net> Tue, 14 Nov 2017 17:50:15 +0000