We have updated the Releases section of project pages on Drupal.org, like Webform. We are phasing out “recommended by the project’s maintainer.” The green/yellow color scheme which had been based on that is now replaced with blue/grey. Stable releases have a blue background; alpha/beta/rc have a grey background.
This simplification results from Drupal’s move to semantic versioning and Composer. Composer has never used the “recommended” label. Drupal itself phased it out while gaining support for semantically-versioned modules and themes with Drupal 8.1. With semantic versioning, project maintainers “recommend” releases by making them stable.
With this design update, we also had an opportunity to use a little bit of Drupal.org’s new brand identity.
Follow #3509485: Remove “recommended” status for releases? for more details on the underlying changes.