Love it. My only critique is that the Android Adaptive version looks entirely different to the primary version. I think if they'd gone an outline route - like

Love it. My only critique is that the Android Adaptive version looks entirely different to the primary version. I think if they'd gone an outline route - like the Gmail/Photos/Settings icons on Android do - it would've retained more of the spirit of the primary version, rather than the inversion which seems to literally invert the general "feel" of it.