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On 2021-11-20T02:12:31+00:00 Gordon Lack wrote:

Steps to reproduce:

I'm running Kubuntu 21.10 (Impish) using the Thunderbird from there.

The problems started with the update to v91.2.1 in Impish.
I get the same problems when starting up Thunderbird on a live-USB boot of 
Kubuntu, so it's nothing to do with any options I have set.


Actual results:

At 91.2.1 the drop-down menus for editing Calendar events (such as
options for Repeat: and Reminder:) have light text on a light
background, and are hence unreadable.

At 91.3.1 it gets worse.
Here the (left hand) sidebar in the Preferences menu and Add-ons manager are 
ALSO displayed with a light background (and light text!!) when I'm using the 
Dark Theme!!!
The drop-down menus are *still* totally wrong (and unreadable).


Expected results:

The foreground/background colours should reflect the theme, as they did
until prior to version 91 (which probably means version 78 for Ubuntu).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/6

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On 2021-11-20T02:15:01+00:00 Gordon Lack wrote:

Originally reported to Ubuntu.
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912

They reckoned it was an upstream issue, hence this.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/8

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On 2021-11-21T16:28:04+00:00 Wls220spring wrote:

The issue in 91.3.1 was bug 1741095 which is fixed in version 91.3.2.

I can't reproduce your Calendar issue using 91.3.2 on Fedora 34
Workstation, Gnome 40 desktop with the light Adwaita operating system
theme and the Thunderbird Dark theme, or using the Fedora supplied
91.2.0.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/9

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On 2021-11-21T16:42:46+00:00 Gordon Lack wrote:

I'm using KDE not Gnome.

So boot Kubuntu 21.10 from a live USB, run an update (to get to 91.3.2),
start up Thunderbird, set the Dark Theme in Preferences and open
Tools->Add-on and Themes.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/10

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On 2021-11-21T16:48:09+00:00 Gordon Lack wrote:

Sorry. Ignore the previous post.

I was thinking I was on 91.3.2, but it's still 91.3.1.

I'll wait to see whether 91.3.2+ also fixes the drop-down menus.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/11

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On 2021-11-21T17:05:43+00:00 Gordon Lack wrote:

From bug `1741095:
>>>  You can temporarily fix this by entering the config editor and setting 
>>> ui.systemUsesDarkTheme to 1.

This does work on my 91.3.1 to fix the left-hand panel oddity (odd that
it's a number, not a boolean).

But it has no effect on my drop-down menus in Calendar.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/12

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On 2021-11-21T17:11:10+00:00 Gordon Lack wrote:

Created attachment 9251793
What my drop-down Calendar menus look like 91.2.1 (and 91.3.1)

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/13

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On 2021-11-21T18:49:19+00:00 Gordon Lack wrote:

Created attachment 9251801
Same entry on TB 91.1.2 on live-boot Kubuntu 21.10

I booted the Kubuntu 21.10 iso on a live USB, started up Thunderbird
(91.1.2) there, added my calendar (need to click on the Calendar tab
before any options to add/do anything for calendars shows up), set Dark
Theme and viewed the same entry.

The same unreadable light-on-light drop-down menus appear.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/14

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On 2021-11-21T19:38:01+00:00 Gordon Lack wrote:

Just to add that setting ui.systemUsesDarkTheme to 1 has no effect on
these drop-down menus.

It was already being set in 91.2.1 when the Dark Theme was chosen, but
the issue exists there.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/15

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On 2021-11-21T22:01:02+00:00 Wls220spring wrote:

* I booted Kubuntu 21.10 from a live USB.
* Started the Thunderbird 91.1.2 that came with it.
* Created an email account.
* Enabled the Home Calendar.
* Enabled the Thunderbird Dark theme in the Add-ons Manager.
* Yes, the calendar items are not visible.
* Updated to 91.3.1 and yes the calendar items are still missing and the left 
pane of the Add-ons Manager, Preferences, and Account Settings are light.
* Changed the Kubuntu theme to use Breeze Dark, and Thunderbird to use the 
System theme. 
* Calendar, and other items look good, if you want to use that as a workaround 
until Kubuntu catches up to version 91.3.2.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/16

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On 2021-11-21T23:09:03+00:00 Gordon Lack wrote:

Thanks for the suggestion, but that leaves everything in a Dark mode,
which isn't what I want.

Also, I'm not convinced that 91.3.2 is going to fix the issue. That has
fixed (reportedly) something which *wasn't* a problem at 91.2.1. So it
might not fix something which *was* a problem at 91.2.1.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/17

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On 2021-11-22T02:08:41+00:00 Gordon Lack wrote:

Indeed, I've just downloaded 91.3.2 from thunderbird.net, dropped it in
place as `/usr/lib/thunderbird` and copied across Ubuntu's
`thunderbird.sh` start-up script.

The problems with drop-down menus are *still present*.
So 91.3.2 *does* **NOT** fix the issue.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/18

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On 2021-11-22T15:15:33+00:00 Wls220spring wrote:

I can confirm that, using 91.3.2 with the Plasma theme, Thunderbird Dark
theme on a Live USB of Kubuntu 21.10.

Can not reproduce using Thunderbird 91.3.2 on Fedora 34 Workstation,
Gnome 40 desktop, Adwaita (default) operating system theme and the
Thunderbird Dark theme.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1950912/comments/20


** Changed in: thunderbird
       Status: Unknown => Confirmed

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  [upstream] Drop-down Calendar menus unreadable in Thunderbird

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