There's a visual glitch. The text escapes the boundaries of the button:

I would still prefer this to always look like a button, like the Bluetooth widget, but I won't block on that.

@ngraham I can not reproduce the text overflow bud you are getting. I'm not setting any size-related things, so the bug is probably in the upstream (libplasma or above)

I've reverted the ToolButton change. I agree that systray applets should be unified - either all use Buttons, or all should use ToolButtons.

code change looks fine, and no, shouldn't do that layouting bug, (nor i can reproduce with long text inside plasma buttons)