Multiple transition properties

[IngoVals]

Does anyone have a good idea about how to handle multiple transition properties. I've heard it mentioned that transition-property: all can come at a performance cost.

I guess automatically combining each property would result in a lot of unneeded stylings.

Currently this can be solved by just adding a new line to transitionProperty like this.

'bgandcolor': 'background, color', ( I really need a better naming convention ).