Cover lid for A-collection towel dryer thermostat.

This is an extension cover for a a-collection towel dryer thermostat.
(From the Nordic Group Ahlsell.)
I have a towel dryer from Hafa with both thermostatic mixer (water) and electric heater with thermostat from A-collection.
The combination set the towel dryer about 15mm further away from the wall.
There are extenders included for the wall brackets and the mixer but the cover for the electrical connection does not bridge the longer gap.
I made this to solve the issue.
The lid is fixed