In addition to the Drupal IRC channels and the Slack channels, there are also additional DrupalChat.eu (Rocket.chat) channels that you can join.

This project is community driven and aims to replace the proprietary solution Slack for various reasons.

DrupalChat.eu

The project can be found at DrupalChat.eu and anyone is free to join the platform simply by registering, until the Oauth2 endpoint issue is solved.

Join now!

Add an interface to upload multiple background images to be changed with a set interval.

https://www.drupal.org/project/bg_rotate

Add an interface to upload multiple background images to be changed with a set interval.

https://www.drupal.org/project/bg_rotate

The cover image format resizes an image down (or optionally up) to the smallest
size that completely covers the specified height and width while maintaining
ratio.

https://www.drupal.org/project/image_format_cover

It works exactly like Client-side adaptive image, but print div tag with image un background style which can be more easy to integrate in some specific design cases.

https://www.drupal.org/project/cs_adaptive_background_image

This module provides an image formatter that allows you to display the image in a div as background image. The module extends Drupal's images field.

https://www.drupal.org/project/background_image_formatter