Hidden text in LibreOffice Calc when using Breeze Dark theme

[bitsmack]

There are cases where text and/or button graphics do not appear in LibreOffice (Calc and Draw, at least) when using the Breeze Dark theme in Kubuntu 20.04.1. This is one example.

In Calc, in the "Find & Replace" window (CTRL-H), click on "Find All". If there are multiple results, they are listed with alternating background colors. When the background is white, the white text cannot be seen. If you click on the missing text, the background will change and make the text visible.

Please see the attached screenshot. To recreate:
1. Open LibreOffice Calc
2. Type a string into multiple cells (e.g. "Test")
3. Press CTRL-H to bring up the "Find & Replace" window
4. Enter the string into the "Find" field
5. Click "Find All".

If I switch the Kubuntu theme to Breeze (System Settings -> Global Theme) then the results are displayed properly. If I switch back to Breeze Dark, the problem reappears.

Please let me know if I can provide more information. Thank you for all of your work.

$ lsb_release -rd
Description: Ubuntu 20.04.1 LTS
Release: 20.04

$ apt-cache policy libreoffice-calc
libreoffice-calc:
  Installed: 1:6.4.4-0ubuntu0.20.04.1
  Candidate: 1:6.4.4-0ubuntu0.20.04.1
  Version table:
 *** 1:6.4.4-0ubuntu0.20.04.1 500
        500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:6.4.2-0ubuntu3 500
        500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages

$ apt-show-versions -r libreoffice*
libreoffice-base-core:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-calc:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-common:all/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-core:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-draw:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-help-common:all/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-help-en-us:all/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-impress:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-kf5:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-math:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-plasma:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-qt5:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-style-breeze:all/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-style-colibre:all/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-style-tango:all/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate
libreoffice-writer:amd64/focal-updates 1:6.4.4-0ubuntu0.20.04.1 uptodate

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: libreoffice-calc 1:6.4.4-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.6
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Thu Aug 20 01:27:21 2020
InstallationDate: Installed on 2020-05-05 (106 days ago)
InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: libreoffice
UpgradeStatus: No upgrade log present (probably fresh install)