I create a ink toolbar, and the initial controls are all except pens. I can set the eraser button's background as transparent, but apply to the ruler button. Is this a ink toolbar bug?
<InkToolbar Background="Transparent" InitialControls="AllExceptPens" TargetInkCanvas="{x:Bind inkCanvas}">
<InkToolbarEraserButton Background="Transparent"/>
<InkToolbarRulerButton Background="Transparent"/>
</InkToolbar>