Printing Full Report Under Firefox Tip
I believe this is a Firefox problem not a Cronometer one but the net effect is still the same. On both Linux and Mac if you printed this to a file or a printer you'd see this:
https://drive.google.com/open?id=16g-3H2dS-678gzRhEfKidq6gh6uqUfwv
Rather than what you usually see on screen:
https://drive.google.com/open?id=16AkJXqcoJVOMI-WoXhzyRqywHaZmYGrl
This is a problem on both Mac and Linux with Firefox. This is not a problem with Safari. The way to fix this is to turn on the background colors and images in the extended printing settings when you go to print. Below are screenshots of where the settings are under macOS and Ubuntu MATE Linux. I imagine they will be in comparable places on other operating systems.
Ubuntu MATE Settings Screenshot:
https://drive.google.com/open?id=1eru9eGJWlKekOXBIBc8H7bZ7gQhAdPoj
macOS settings screenshot:
https://drive.google.com/open?id=1dT6GKOJw7tvjLgcYyHYSeMJ1Pl1C_Xjp
Enjoy!