Why is the preview in the Style builder not updating?
The style preview may not be updated because the refresh icon hasn't been toggled to the active state.
Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
No. Acquia Cohesion allows the site builder to select, either use of IMCE or Entity browser for browsing and selecting images.
Modifiers allow you to apply styles to an element when a specific class, id or attribute is present.