Image optimisation

[willguv]

Following on from the Community meet on Sustainable Web Design, could we explore:

• warnings/ guidance when large images are uploaded
• automatic image optimisation eg https://www.drupal.org/project/imageapi_optimize

[rupertj]

We've already set up imageapi_optimize along with imageapi_optimize_gd on H&F. I'd be happy to contrib back a setup based on that.

[millnut]

An alternative to this could be using the Drupal core image styles functionality and each of the image styles that are currently used adding a "Convert" step and choosing "WEBP"

[andybroomfield]

BHCC has image_optimize and image_optimize_binaries installed. Acquia provices jpegtran and pngcrush preinstalled.

To use them web hosts would need to have those binaries installed, we should also look to provide them in ddev / lando setup.