Apply one of nine filters to your photos. There are two ways to add filters to your photos if you're logged in:
Open the album containing the photos you wish to add a filter to. Right click the photo of your choice. Choose 'edit' and select your desired filter from the 'Edit & Enrichment bar' to the left side of your screen.
Click on the pencil icon top right and click on the photo you want to add the effect to. The filters appear in the sidebar to the left.