Sage-Bionetworks/SynapseWebClient — pull request #189 by jay-hodgson (2013-01-21 20:58:43+00:00)
Title: SWC-370: add ability to explicitly set the rendered attachment image size

...based on the width (aspect ratio is maintained). Tried to add this to the editor, but it became a confusing mess, but I think offering this advanced rendering feature via the markdown is the first step.