It would be wonderful if it there was a way to remove or to change colors on charts on a dashboard. If there are a lot of items that appear on the chart often the colors are very close to each other and it can be very difficult to impossible to discern which is which at a glance. Also, for bar charts (and maybe others that I am not as aware of), if there is no grouping a different color is added to each bar. This certainly makes the chart pop with color, but it's not necessary. The chart should be one color (removed multiple colors) and if someone really wants multiple colors like that they should have the option to group by the same field they are using in the measure by. If multiple colors are used, it would be most beneficial to be able to adjust the colors individually. Here is a screenshot of some bar chart examples. Each bar represents an individual. Some of the individuals in the right chart also appear in the left chart, but they are different colors between the charts. In this case it would be nice to be able to remove the colors so all bars in the chart were one color or to change the colors individually so that each user's color is the same on both charts.