In the synth canvas trial for website admins: the seams between modules are 3 pixels of mid grey again instead of 4 of near black, each panel's bevel is again a 1 pixel light edge on the top and left, a 1 pixel dark edge on the bottom and right and a soft inner shadow, and the charcoal frame round the tools section is removed. Nothing changes for anyone else.
Front page synthesizer trial: the lighter seams are back
In the admin-only ?try=synth front page, the seams between modules, the panel bevel and the tools section's edge return to their earlier, lighter form.