Do I have to use IMCE?
No. Acquia Cohesion allows the site builder to select, either use of IMCE or Entity browser for browsing and selecting images.
Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
No. Helpers are coupled with the page once placed. Changes to the Helper layout will not affect existing instances.
Color tags allow you to create groupings of colors based off of the color tags that you define in the website settings color palette.
In mobile first, your styles will inherit upwards from the smallest media query, whereas in desktop first they will inherit down from the largest media query.
The breakpoint indicator shows you which breakpoint you're viewing your website at in the bottom left of the browser.
Go to Extend > Uninstall and search for Acquia Cohesion Breakpoint indicator.