parameters: (self, *params)
docstring: Process toggle between builtin and custom theme.
  
          Update the default toggle value and apply the newly
          selected theme type.
docstring_summary: Process toggle between builtin and custom theme.
docstring_tokens: Process toggle between builtin and custom theme .
function: def var_changed_theme_source(self, *params):
          """Process toggle between builtin and custom theme.
  
          Update the default toggle value and apply the newly
          selected theme type.
          """
          value = self.theme_source.get()
          changes.add_option('main', 'Theme', 'default', value)
          if value:
              self.var_changed_builtin_name()
          else:
              self.var_changed_custom_name()
function_tokens: def var_changed_theme_source ( self , * params ) : value = self . theme_source . get ( ) changes . add_option ( 'main' , 'Theme' , 'default' , value ) if value : self . var_changed_builtin_name ( ) else : self . var_changed_custom_name ( )