By default, Easynote is creating different colors for each category you are creating, however you can set your own custom color of your category.
This is how you change a color of a category
![Change color of category](https://d258lu9myqkejp.cloudfront.net/attachment_images/add175011e722928b96d61cc24966e7bf41a5847df6c1b19a7b2ceef9112034achangecolorcategory.gif)
Click on a category name, to edit it
To the right, click on the color picker
Change to desired color