Lack of documentation + enhancement

[unnieayilliath]

Great job the calendar works just fine! I have few questions or maybe enhancements.

1. Ability to change the background color
2. Ability to show different dates with different colors (eg: Working days as green and holidays as red etc, or based on the type of meeting in a day change color)
3. Border between months. I have a sample image below which resembles these ideas

4. Also more documentation (I can help you with this)

[g1eb]

Thanks for your suggestions, sounds good and should be easy to add as long as they are optional.

Right now the heatmap is transparent, allowing users to set background color to whatever they want in their own css. We can keep that as default and set background color if specified. Maybe we should then also allow users to set text color and background color of the tooltip.

For number 2 we could add color to the dataset that would override the default heatmap coloring when set, this would allow users to specify colors on dates they want. What do you think?

Hovering over month labels highlights selected month (this was a similar request to see exact borders of each month), but we can add more distinct borders (should be optional).

There are other versions of this visualization for react and angular 1.x, we should add these improvements there too (you can find them in the readme).
More documentation is always welcome :)