[TASK] Update wording and colors to harmonize with TYPO3 6.2

Resolves: #57372
Change-Id: I0ace8d0bb86b9f95a7b4e6fce77365522b0bdbd4
Reviewed-on: https://review.typo3.org/28905
Reviewed-by: Steffen Müller
Tested-by: Steffen Müller