Enhancing Graph Legends with Boolean Properties for Clarity

when breaking down a graph by boolean properties, it's not very useful to label the graph with "true/false" since that doesn't actually tell you what the categories are; the legend should also include the dimension that is true/false, for context, so I can take a screenshot of the graph and send to someone without having to explain what I'm breaking down by, or what the "breakdown" field means; see attached for a suggestion