The spacing on the first-run message is off. Also, I'd expect the padding between the icon and the left edge to be equal to the padding between the install button and the right edge. And the install button could stand to be centered vertically relative to the icon and text.
The spacing on the first-run message is off. Also, I'd expect the padding between the icon and the left edge to be equal to the padding between the install button and the right edge. And the install button could stand to be centered vertically relative to the icon and text.