To my bare eyes it seems the alpha level of top bar is ~0.3 whereas alpha level of the dock is 0.2 by default when all windows are hidden. I changed the the alpha level of the dock to 0.3 using dconf-editor and now it seems they're pretty much consistent with each other.
** Attachment added: "alpha.png" https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/1722479/+attachment/5002973/+files/alpha.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1722479 Title: Dock and panel are different opacity/transparency/colour Status in gnome-shell package in Ubuntu: Confirmed Status in gnome-shell-extension-ubuntu-dock package in Ubuntu: Confirmed Bug description: Dock and panel are different opacity/transparency/colour ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell-extension-ubuntu-dock 0.7 ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3 Uname: Linux 4.13.0-12-generic x86_64 ApportVersion: 2.20.7-0ubuntu2 Architecture: amd64 Date: Tue Oct 10 16:27:07 2017 InstallationDate: Installed on 2017-05-03 (160 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170502) PackageArchitecture: all SourcePackage: gnome-shell-extension-ubuntu-dock UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1722479/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
