Brisk menu with default Yaru-MATE-light has low contrast for selected items while using keyboard navigation

[Norbert]

Steps to reproduce:
1. Boot or install Ubuntu MATE 21.04 iso
2. Open Brisk menu with <Super> key
3. Navigate by keyboard to select some item

   <Tab>, <Down> to select All, <Right> to select first item

Expected result:

* selected item is normally visible

Actual result:

* selected item has low contrast (see screenshot)

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: ubuntu-mate-themes 21.04.4
ProcVersionSignature: Ubuntu 5.10.0-14.15-generic 5.10.11
Uname: Linux 5.10.0-14-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu60
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.460
CurrentDesktop: MATE
Date: Sat Mar 13 19:10:26 2021
LiveMediaBuild: Ubuntu-MATE 21.04 "Hirsute Hippo" - Alpha amd64 (20210313)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-mate-artwork
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1919040

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubuntu-mate-artwork - 21.04.5

---------------
ubuntu-mate-artwork (21.04.5) hirsute; urgency=medium

  * Sync Yaru-MATE with upstream Yaru (LP: #1919040, #1717285, #1760362)
  * Drop obsolete Yaru-MATE icons, only dark/light variants are required.
  * Add Yaru-MATE wallpapers
  * Add contest winning Hippo photo wallpapers
  * Add Hirsute Hippo mascot wallpapers (LP: #1921139)

 -- Martin Wimpress <email address hidden> Fri, 26 Mar 2021 11:58:00 +0000