Breaking: #77137 - RTE option "colors" removed 

See forge#77137

Description 

The RTE configuration option RTEsetup.properties.colors has been removed.

Impact 

The color picker is streamlined with all occurrences in the backend, it shows all available colors.

Affected Installations 

All installations configuring RTEsetup.properties.colors are affected.

Migration 

There is no migration available, the obsolete configuration can be removed.