Powertoys: [System tray] Update colored icon to an outlined version

[niels9001]

This was discussed in various issues - this one can be used to track this request and post ideas.

Summary of the new feature/enhancement

The current icon that shows up in the system tray uses the PowerToys app icon. To feel as native as possible, it would be nice to use a black/white icon that are similar to system icons such as network, sound and network.

Proposed technical implementation details

An outlined version of the PowerToys icon will feel more native to the user. Some requirements:

• Theme support (white with dark theme, black with light theme) (Must)
• Should look very similar to the app icon so users recognize it (Must)
• It could be used to show e.g. machine states (Could)

@Elttob made some nice concepts in #1118:

Monochrome:

Using the icon to display e.g. status:

[AdilHindistan]

I came here to say, I am really sorry but I hate the current system tray icon. I loved original PowerToys back in the day and wanted it give this a try but can't stand seeing that hideous icon on my screen. That being said, The icons above do not look bad at all, especially the top right one on black.

[crutkas]

We could make this a system option. Icon vs outline

[ntindle]

As mentioned in https://github.com/microsoft/PowerToys/issues/3917#issuecomment-636515588 is the plan to not pursue this?

[crutkas]

it is an idea we still may do. No one has really pushed for it and we have higher priority work we'd rather focus on