Adds a tooltip-like panel to clearly indicate that input methods displayed
are related to the input language selection.
Change-Id: Ib4e9bca48f1f18cfd09a32c25f7ebf404af228e8
Adjust spacing and color for the 'Input method tools are disabled' text.
It also sets the color for heading texts.
Change-Id: I0c8395223a7a8de84eae01daa3b4407e705420a0