GUIDE_VIEW_ALIGNED_SCALE_PERCENTAGE
Float attribute for providing the percentage of the screen width that the guide view takes up. This value is for when the document and the device are aligned, use GUIDE_VIEW_UNALIGNED_SCALE_PERCENTAGE for specifying the width when they are opposite.
Range between 0-1.
Can be set either programmatically in the MiSnapSettings, or through the nav graph's 'argument' tag.