Issue Description

The documentation states that there is only one property for dimensions but there are new ones since 6.5 or 6.6.

URL of the Page with the Issue

https://developer.wordpress.org/themes/global-settings-and-styles/settings/dimensions/

Section of Page with the issue

Dimensions settings

Why is this a problem?

Now there is also :

• aspectRatio (bool)
• defaultAspectRatios (bool)
• aspectRatios (array of values)

For now, there is no explanation about theses values. Hopefully, the theme.json schema helped me find the syntax for the custom aspects ratios

Suggested Fix

• Add a section for each new value
• Add an exemple on how to define custom aspect ratios