1. Save the site to a specific project and column.
2. Open Projects and locate the project and column where you saved the site.
3. Click the (⋮) icon at the top-right corner of the column to open the dropdown menu.
4. Select Change column colour and set the colour of your preference.
5. Return to the map view and toggle on Projects at the top-left. Your saved site will now appear on the map highlighted in the colour you chose.