$ sudo apt-get update
$ sudo apt-get install kdepim-themeeditors 

kdepim-themeeditors is installed in your system.

Make ensure the kdepim-themeeditors package were installed using the commands given below,

$ sudo dpkg-query -l | grep kdepim-themeeditors *

You will get with kdepim-themeeditors package name, version, architecture and description in a table

kdepim-themeeditors package basic information: