Configs can be customized using the `template_variables` attribute when calling the file.
These template variables can be used to customize individual colelctions/overlays or the set as a whole.
These template variables can be used to customize individual collections/overlays or the set as a whole.
A given default may have variables that are specific to it, and may also leverage a common set of shared template variables. These lists are shown on each default file's wiki page.