Add a new gradients for green base color

[thariqaudah]

Is your feature request related to a problem? Please describe.
Hello, I want to contribute to this cool project by adding a few gradients based on green color. I see that this green base color is not much listed in this project. Hopefully, it would help to make the web have more various gradients color.

Describe the solution you'd like
I want to contribute by adding three gradients based on green color.

Thank you.