Don't automatically hide the icon while in transparent title bar mode, since it's a little confusing to the user. Instead, just use an extra setting for that.
Also, when hiding the icon, properly hide it now by clearing it. Previously it was just making an invisible icon which was still draggable and didn't behave properly. Make sure after we set the setting it's refreshed correctly.
Don't automatically hide the icon while in transparent title bar mode, since it's a little confusing to the user. Instead, just use an extra setting for that.
Also, when hiding the icon, properly hide it now by clearing it. Previously it was just making an invisible icon which was still draggable and didn't behave properly. Make sure after we set the setting it's refreshed correctly.
Fix #1503