I use the Group function of graph view to show different color of nodes by different tags or the types that i created by yaml. This make me distinguish the notes that i want to focus from the whole graph. Also, you can add blank groups, such as "tag: " or "file: " , using them as flexible color filters. When they are blank, they are off and show no color. Or, you can add other symbols in front of them ( " !tag: " ),and then the function disabled.