Hey there,
Sorry for the delay. It looks like the command line parameters for the game window are now called ResX, ResY, WinX and WinY.
The log console parameters are now called ConsoleX and ConsoleY. These should be saved to the INI when the game shuts down, and loaded from the INI when the window is first shown next time. However, the loaded values were not actually applied, which I now fixed. I also added the ability to override them on the commandline using ConsoleX= and ConsoleY=. You will have it in the next Rocket release.
We will update our documentation as well.
Thanks!