Hello, @tomomargiljic . . . I have moved your new topic here to this thread for questions about the mat.
Shadow would be too dark, but mist matches the color of the mat that comes with the home station. I would also advise you to make sure if you are using that for a mat, that you create a safe space with borders to be in. Also, make sure the mat is a smooth surface and does not have texture.
Here are some ideas for safe spaces to create around that mat.