Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values. By default, these grid lines use the color assigned to the "automatic" selection feature, which is ...

Finding the perfect shade can be difficult in today’s world of endless color choices. Fortunately, we have color-matching apps. These innovative tools help users to identify, match, and experiment ...

Each metro line usually has its own color on the map. For obvious reasons, these colors should be maximally different. Suppose a new metro line is built. We now explain a strategy to choose the color ...