Please implement something that you broke in Thunderbird 118.
Several people tried to create plugins to change the acount colours that were working just fine and you keep breaking them. Example : https://github.com/gazhay/accountcolors
Can you please implement something like that deafult in thunderbird? I have 6 accounts and I don't know where the emails come from because you keep breaking something as simple as this.
I've updated my fork of accountcolors plugin to support Thunderbird 128 (Nebula). It keeps compatible with Thunderbird 115 and 102 (My previous comment for 115 support did not get posted after edit).
For each thread pane's card row, their background color will be rendered as a small label in the leftmost of the card.
The label's width can be configured.
The label's position can be set to be indented/not indented for thread submessages.
Thunderbird 128:
Thunderbird 115:
1.2 Color Row Background as Label in Table View
For each thread pane's table row, their background color will be rendered as a small label in the leftmost of the column.
The label's width can be configured.
The label's position can be set to be at subject column, or at first column of the row.
2. Folder Pane
2.1 Render Account Background Color as Icon Color
For account folders, and all subfolders in each Unified Folders (Inbox, Draft, etc.), their background color will be rendered as folder icon's color.
2.2 Render Folder Background Color as Icon Color
For normal folders, their background color will be rendered as foler icons color (The orange and blue ones).
If any folder is named as one of its identity's email or name (the purple one), that folder and all its subfolders will be rendered with that identity's color.
2.3 Color Unread / Total Background
The folder's unread / total messages badge's background can be colored now.
It will not affect new message's background color.
3. Message Pane
3.1 Color Header Background as Label
Message header's background will be rendered as a small label in the leftmost area.
The label's width can be configured.
4. Compose Pane
4.1 Color Identity Background as Label in From Menu
Identity entry's background will be rendered as a small label in the leftmost of the row.