Xiomi Mi Io Binding Image croping

Hi Guys,
was able to connect my Roborock S5 Max with the Binding and everything seems to work fine.
I just have one issue, the image displayed has a big blue background and i dont know how to crop it.
i tried to edit the mapConfig.json but the croping parameter i found didnt work. I tried with negativ and positive values but nothing seems to change. I know that the file will be used becouse changing the showLogo Parameter is working fine.

that’s inside my mapConfig.json

{ "text": "" , "cropBorder": 1000 , "showLogo": true}

Does someone know the possible parameters for the mapConfig.json files?

BR Marcel

found it by myself.