Formatter is useful for transforming columns with custom styling and for manipulating values.
With the Default Formatter, you can apply standard text formatting and make reference to a foreign table.
The same can be done using the Options Value Formatter too.
Figure 1: Configure Default Formatter
If you have a column that holds the foreign key value to another table, it is possible to make reference to it by configuring it in the Configure Foreign Key tab.
Figure 2: List with Foreign Key
Figure 3: Configure Foreign Key
Figure 4: List with Formatter Set