How to Become a WordPress Core Contributor With One Line of Code

[To better illustrate our core value of community service, we are sharing an internal post from Senior Front End Engineer Derrick Koo, who recently made his first code contribution to the WordPress project. We hope his story encourages more people who are “on the fence” about contributing to take the plunge and start giving back to the WordPress community. —Jake Goldman, President & Founder] Contributing code to WordPress Core can be intimidating for a first-timer. With thousands of tickets out there, it can be hard to know where to begin. With development out in the open, it takes a lot of courage to submit a first WordPress patch.
For the benefit of new and aspiring contributors, I’m sharing my experience making my first code contribution to WordPress. Starting with little knowledge of the Core contribution process, I embarked on a journey that resulted in one line of CSS, and my first Core props.
Find a ticket
One day, WordPress lead developer (and fellow 10upper) Helen Hou-Sandí asked me to investigate a relatively straightforward browser bug in the Twenty Seventeen theme.
Tickets are just bug reports (or potential enhancements) in the WordPress
Source: https://managewp.org/articles/15210/how-to-become-a-wordpress-core-contributor-with-one-line-of-code

source https://williechiu40.wordpress.com/2017/05/26/how-to-become-a-wordpress-core-contributor-with-one-line-of-code/