You're reading the documentation for an older, but still supported, version of ROS 2. For information on the latest version, please have a look at Humble.
General Use ROS Artwork
The ROS 2 media kit, which includes branding language, high resolution ROS logo graphics, and release images, can be found in the ROS art repository. Please refer to this repository for ROS art work and our branding guidelines.
Stickers, Posters, and Canvas Prints
Open Robotics hosts an online storefront on Zazzle.com with artwork available in various formats.