Backend\Modules\Extensions\Actions\ThemeTemplates::loadDataGrid PHP Method

    private function loadDataGrid()
    {
        // create datagrid
        $this->dataGrid = new BackendDataGridDB(BackendExtensionsModel::QRY_BROWSE_TEMPLATES, array($this->selectedTheme));
        // check if this action is allowed
        if (BackendAuthentication::isAllowedAction('EditThemeTemplate')) {
            // set colum URLs
            $this->dataGrid->setColumnURL('title', BackendModel::createURLForAction('EditThemeTemplate') . '&id=[id]');
            // add edit column
            $this->dataGrid->addColumn('edit', null, BL::lbl('Edit'), BackendModel::createURLForAction('EditThemeTemplate') . '&id=[id]', BL::lbl('Edit'));
        }
    }