To change the plot properties click on the View --> Plot Properties menu or the plot properties icon 
. This opens the Plot properties dialog as
shown in the Figure below:
2D Histogram: Plot Properties Dialog (Simple tab)
For changing properties such as title of the plot, labels, and ranges, click on the Simple tab.
For changing properties such as color, legends etc. click on the Advanced tab.
- Selecting a particular dataset in Dataset combobox and changing color and/or histogram types will change the properties of only that particular dataset.
- Selecting All Datasets in Dataset combobox and changing color and/or histogram types modifies the same of the plots overlayed (if any) and plots that will be overlayed in the same plot panel.
When All Datasets is selected in Dataset combobox, an option to Apply changes to All Plots is available. Enabling this feature applies property of the respective plot panel to all the plot panels present with histogram plotted and even those that might be created subsequently.
To use transparent colors vary the alpha value in the color chooser box which pops up by clicking the colored button with label Color.
2D Histogram: Plot Properties Dialog (Advanced tab)
