[plasmashell] [Bug 494534] Login theme can have illegible icons when using an icon theme that does not have all of the required icons

[Filip Fila]

https://bugs.kde.org/show_bug.cgi?id=494534

Filip Fila <filipfila.kde at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|DUPLICATE                   |---
     Ever confirmed|0                           |1
            Summary|Login theme can have        |Login theme can have
                   |illegible icons when the    |illegible icons when using
                   |user's icon scheme is       |an icon theme that does not
                   |synced but cannot be used   |have all of the required
                   |                            |icons
                 CC|                            |kde at privat.broulik.de
             Status|RESOLVED                    |REOPENED

--- Comment #4 from Filip Fila <filipfila.kde at gmail.com> ---
I rephrased the bug title so it relates to Bug 491118. It's partly up to themes
to add missing icons, like Nuno did for Oxygen, but it's also a problem with
Plasma Components 3 if it's doing a bad job of setting fallback icons. I
believe this problem didn't exist with Plasma Components 2.

I attempted to hack the login theme so that icons fallback to white, but I
can't set the icon color property for all of the buttons.

The obstacles begin at line 205 in Main.qml, where there's ActionButtons that
don't accept this property. 

I guess if there is a way to rework these buttons into other components that
support setting the icon color, the bug can be worked around in the login
screen.

If there's no way, the bug should be transferred over from sddm-kcm to Plasma
Components. CC-ing Kai Uwe who I think worked on this.

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