We published an article about creating icon sets for digital products on Medium. You will find how to create icon families that are part of the brand identity with best practises and guidelines.
To create an icon set, there is 7 main element to consider:
1. Personality
2. Clarity
3. Unity
4. Grids
5. Sizes
6. Details
7. Documentation
Read their details from our publication 🙌🏻