1Click on the Preview button at the top right in your Newsroom page editor.
2 In the preview window that opens, click on the "Change Layout" button at the top right.
3 Click on the different layout options to see the real-time preview, and then click on the "Select Layout" button to choose the selected layout for your Newsroom page.
4 After choosing the layout, you can click on the 'Change colors' button to customize the theme colors to match your brand.