When using Dark theme, text is unreadable in gedit

[Howard Cochran]

Problem reproduces after a fresh install of Ubuntu 20.04 LTS with all updates applied as of 2020-06-03 (June 3). Steps to reproduce:

1. Open the ubuntu-settings app.
2. Choose the "Appearance" tab.
3. Under Window colors, choose "Dark".
4. Open gedit
5. Type some text.

What I expect to happen: Text should be readable
What happened instead: Text on the line containing the cursor is not readable because it is white on nearly-white. See the attached screenshot.

Note: Problem persists after a reboot.

Release: Ubuntu 20.04 LTS

Relevant Package Versions that I know of:
yaru-theme-gnome-shell: 20.04.7
yaru-theme-gtk: 20.04.7
yaru-theme-icon: 20.04.7
ubuntu-settings: 20.04.5
gedit: 3.36.2-0ubuntu1

Workarounds:
1. Open Preferences in gedit, View tab. Unselect "Highlight current line"
2. Open preferences in gedit, Font & colors tab. Select "Cobalt" color scheme.

Although reasonable workarounds exist, I believe that the Dark theme should be made to work seamlessly across all preinstalled applications.

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1857191, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report.

Feel free to continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.