Implement the new icons in the Folder Pane for all accounts.
We need to explore and define if we want these icons to react to the density variations, or if the "compact" variant (16px) should be kept constant.

Leaving open because we need to add a density variant for folder pane.

Pushed by geoff@darktrojan.net:
https://hg.mozilla.org/comm-central/rev/f66f2d68d50f
Implement new icons in Folder Pane r=aleca

The icons are incorrectly styled when the treechildren is selected but the tree doesn't have the focus.
This seems to happen only on macOS.
Since these are shadow DOM elements it's kinda tricky to find which style is affecting this in the inspector.
Richard, are you able to figure this out?

Pushed by geoff@darktrojan.net:
https://hg.mozilla.org/comm-central/rev/58ec8b3b50f9
Show the folder icons correctly in all menulists. r=aleca

(In reply to Alessandro Castellani [:aleca] from comment #6)

Created attachment 9275945 [details]
Screen Shot 2022-05-10 at 1.41.52 PM.png

The icons are incorrectly styled when the treechildren is selected but the tree doesn't have the focus.
This seems to happen only on macOS.
Since these are shadow DOM elements it's kinda tricky to find which style is affecting this in the inspector.
Richard, are you able to figure this out?

There are some places that are missed to set the correct fill/stroke. Found also an issue on Windows with dark theme. I'll look if I can fix the issues.

Pushed by mkmelin@iki.fi:
https://hg.mozilla.org/comm-central/rev/b23afa595fe0
Set the correct folder icon colors when selected or new message. r=aleca

I just noticed that the indicator of "new" emails is cut off in normal and compact density.
I think it's a regression but I'm not sure it was caused by the new icon or any adjacent work we did here.
Anyway, it should be a very minor fix.

(In reply to Alessandro Castellani [:aleca] from comment #13)

Created attachment 9276626 [details]
Screen Shot 2022-05-15 at 10.02.18 PM.png

I just noticed that the indicator of "new" emails is cut off in normal and compact density.
I think it's a regression but I'm not sure it was caused by the new icon or any adjacent work we did here.
Anyway, it should be a very minor fix.

On which platform? On Windows with normal density it's okay. I think this is correlated with the treeitem height.

Sorry, forgot to mention. That's on macOS, no issues on Windows or Linux.

Pushed by mkmelin@iki.fi:
https://hg.mozilla.org/comm-central/rev/58daa42916da
Implement new icons at touch density in folderpane r=aleca

Anything else needed for this bug?

(In reply to Alessandro Castellani [:aleca] from comment #17)

Anything else needed for this bug?

Not that I know of, unless I'm missing something.