Is there a chart for dual-type Pokemon in inverse battles, similar to this chart?

pokemondb.net/type/dual

I'd like to do competitive inverse, and figuring out everything is annoying. I'd like a chart that simplifies inverse matchups.

I have been working on an inverse type chart, just for you. It's still in its infant stages, but feel free to view it.

Here it is

For anyone who looks at this thread: http://type-matchup.appspot.com/?primary-type=Steel&secondary-type=&ability=&inverse-type-chart=on This helps calculate for a specific Pokemon's defensive type coverage, including dual-type. Not meant for offensive calculation though.