This is a topic started under the new Ask the PMs discussion area for upcoming webinar(s). It was not intended for general discussion.
It appears that the new CSS-based layout rendering system gives additional possibilities to layout mode that we didn't have in FP7 files, but it also appears to have some major hits on performance and existing systems:
- Existing systems with hundreds or thousands of layouts would take ages to convert to anything comparable to a v12 native file.
- Many Print issues, some noted by another participant, seem to be related to the new CSS-rendering.
- Object style theme-override changes and layout-wide Theme changes are reported to leave excess CSS code embedded in the file with no way for users to clean it up.
- The potential promise of CSS that developers eventuallywould be able to directly control CSS manually has not only not been realized, it has been actively cautioned against as a future source of errors as updates or upgrades are released.
While some of us really like the new options, it appears that we have taken on a whole new set of larger problems with the new layout rendering system.
[ I love 12, but it seems this layout change was the biggest version innovation, and the main source of new problems. ]