I just released Meteor Slides 1.5.5. This is a small update that adds support for responsive images using srcset in WordPress 4.4 and fixes some Twenty Sixteen theme conflicts.
Meteor Slides has been responsive for years now, scaling the slideshow images down for smaller screens and devices. But WordPress 4.4 adds new built in support for responsive images using srcset. What this means is that rather than loading the full size images and shrinking them at smaller sizes, it will actually detect the size of the screen or device and load smaller images. This will reduce the file size of the images that are loaded on smaller screens, speeding up the load time of your websites!
Meteor Slides will still responsively scale the slide images in between these different srcset images sizes so that your slideshows scale smoothly to fit all sizes. By default WordPress sets the max width of the responsive images to 1600 pixels, so if you have images larger than that it will incorrectly load a smaller version of that image on larger screens. Meteor Slides will check the slideshow width in the settings and increase this max width if the slideshows are wider than 1600 pixels. If you need to fine tune the srcset sizes or adjust the WordPress defaults for a certain theme, there are filters for changing these.
Twenty Sixteen Theme
WordPress 4.4 ships with a new default theme, Twenty Sixteen. The latest version of Meteor Slides has been updated to be fully compatible with the new default theme.
I have also created a custom header.php file for Twenty Sixteen which will replace the header image on the homepage with a slideshow, just like featured image above. You can download this Twenty Sixteen header slideshow template on Github, which you can use in a child theme for Twenty Sixteen.