Starting with font color in urls.
Personalized font color are now available.
improve readability in tests.
Test unknown font colors.
Refactor font color tests.
Improve documentation.
Improve documentation (update version number).
Moving index action to a Controller class.
Moving font action to the Controller class.
Moving background color action to the Controller class.
Refactoring base controller.
Now all image routes use the same action in base controller.
Improve documentation with example image.