Just install VMwareGfx.kext from darwin.iso 8.5.5.
I downloaded darwin.iso 8.5.3 posted by MSoK to double check.
The one from 8.5.3 contains the 2D Accelerator code.
In 8.5.5, it's been removed.
There's noticeable shrinkage in the size of VMwareGfx binary (in MacOS subfolder.) The size of 8.5.3 is 304504. The size of 8.5.5 is 106992.
Good to know, thanks Zenith. Is there anything that needs to be done other than installing new tools? For me it seems like graphics have actually degraded over last 2 or 3 tool releases...