how to use expressions in styles?

[kmahmood74]

I want to set the width and height to the device's width and height, how do I do that as yaml complains -

styles: {width: '${device.width}', height: '${device.height-200}'}

[kmahmood74]

instead of using styles property, just specify width and height directly -

            width: ${device.width}
            height: ${device.height - 100}