1821142 - The background of newly opened windows should be dark with dark theme - macOS (without system dark theme)

Status: UNCONFIRMED

(Thunderbird :: Theme, defect)

Description

[Nicolas Mandil (:NicolasWeb)]

Attachment: TB while starting.jpeg

Step to reproduce:

1. Set the dark theme on an OS without system dark theme
2. Restart TB

Actual results:

• The window title bar is black
• A big white area is shown and reduce while components are shown (space toolbar, Unified toolbar, Folder pane, Message list). Ends still white the Message reader area.

Expected result:

• With dark theme, TB background should be dark and then be filed with components, so no white blink to the user
• At start end, Message reader area should be dark with dark theme

Not a regression as the bug exist too in TB 102.
Not sure which OSes are impacted

Not sure if Theme is the right component, as it's early in the GUI start process, but still partly visible at the end. Maybe Main window Frontend ?

Comment 1

[Nicolas Mandil (:NicolasWeb)]

This happens too when a user open another window than the main one : the compose window.

This white flash happens too with Dark Theme after the user clicked "+ New Message" to compose in a new window.
The compose area start with a white background flashes and then is converted to dark.