How to change Falang tab name
By default the translate for Yootheme add a tab name Falang but since the 1.30 version of Translate for Yootheme , you can change it by language override
Go to System > Manage > Language Overrides
In this exemple the German name will be changed, for this we create a new override in German language and administrator key
The name of the key to create is PLG_TRANSLATEYOOPRO_TAB_NAME
The translation can be see in the list
Here is the result when you are in the builder