* Added new **DigitsCaptcha** class. Generates captcha with user-defined number of digits. * Implemented dynamic and randomized color variation. This should make the numbers pop out a bit more to the human eye, while keeping the RGB values randomized across the image.
0.1.4
* Breaking change: package renamed to color-captcha.
0.1.3
* `ClockCaptcha.set_colors()` now takes a minimum of 3 values.