How can I choose colors and fill patterns for individual bars in a bar graph?

Bars from a particular data set (column) always have the same color and fill pattern. To assign different colors to different bars, you must enter the data in different data sets.

If you have one group of bars, enter the data on one row, one value per column. That way, each bar is its own dataset, and you can assign a different color and fill pattern to each bar. To rearrange your data, copy it to the clipboard, choose "Edit...Paste Transpose".