All Teacher and Admin Reports can be printed in color. Some reports, like the Progress Report, contain background images that need to be selected in settings, in order to be shown when printed. If you're printing on Chrome, click "Print" on the report. Once the Print dialogue box appears, click "More Settings", then make sure that "Background Graphics" is checked. The progress bars for the Progress Report will then be displayed.
If the background graphics are visible, but are only appearing in black and white, make sure that in the drop down box next to "Color", you have selected "Color Printing" as opposed to "Black and White" in your print settings.
When printing directly from Chrome, the display box may not give you the option to print in color, but you still can! When you click "Print" in Chrome and the dialogue box appears, click "Open PDF in Preview" in the bottom left corner. From there, when you click "Print", you will see the option to print in color.