This approach not only saves bandwidth and traffic as the JSON files for each day get stored in the browser's HTML5 App Cache, it also makes for faster, more responsive pages. On mobile devices that means the site is visible a lot quicker since a lot less HTML has to be parsed by the browser initially. Loading all the JSON files in parallel means the content is ready almost instantly after the page has loaded. Off-loading them to the App Cache further speeds things up on subsequent visits.
One-way pull using the Instagram API to get semi-live posts from the client's Instagram account. JSON feed via PHP parsed and cached on the back-end to make for a more responsive (as in being faster) site. The JSON rendering part has its own HTML template for easy changes.
The process here was kinda awful, but maybe someone here has a better one. I calibrated the display (so it's fresh) set up a Just Normlicht next to my display with the correct Pantone chip in it and dialed the lights and material properties in by eye.
In order to at least sort-of make the September 1st launch date despite having close to zero content, I came up with an interim site design that was all built on large visuals, in the hope to distract from the content-free-zone dilemma. As you'll note, back then the logo was still red.
The stray dots there were from a live rendered star field. But more about that here (best in Google Chrome).
The trick with getting the translucency right was simply to pre-multiply the alpha channel, so the colors wouldn't be affected by Photoshop's idea of alpha channels.