Turn on Visualize Line Breaks in the Options menu or select the item in the drop-down menu of the Visualize Spaces button on the collection toolbar if you always want to see a ¶ character (Pilcrow symbol) at the end of each paragraph, indicating the invisible line break character(s) at the end of each line. To change the color of the ¶ character, customize the color palette and change the “Editor: Line breaks” color.
If you turn off Options|Visualize Line Breaks then line break symbols are only displayed when line break characters are selected. They are then shown with the colors for selected text in reverse.