This has been a support case in the "old" ProofHQ support area. To make sure these topics will not get lost I post them in the new IDEA EXCHANGE workfront area.
It would be really great if there was the chance to check the color value of elements within a proof (something like a pipette). In addition the exact position of elements (e.g. logo) often plays an important role. Therefore some kind of measurement would be appreciated (e.g. set the extensions of the complete document, so that the ProofHQ editor can derive distances, etc.).