Image Ratio settings
The image ratio can be defined on each section or block where Image Orientation is applicable (i.e. the Collection Items sections).
Throughout the theme, you are provided with the option "Image Orientation" in multiple sections or blocks. In the Image Orientation option, you are provided with the Landscape and Portrait options. To change the ratio of these orientations, you can use the Image Ratio option in theme settings.
Image Ratio sizes
The following boxes represent what the different ratios will look like in both Landscape and Portrait orientations.
Landscape
Portrait