@XavierM I think we're actually going to remove this particular usage. I just noticed we're using it [here](https://github.com/elastic/kibana/blob/master/x-pack/legacy/plugins/siem/public/components/matrix_histogram/utils.ts#L92) as well, which I'm going to inline to pull from UI settings as well. (cc @angorayc)    That just leaves references in the tests. I'm happy to declare a `const DEFAULT_BYTES_FORMAT_VALUE = '0,0.[0]b'` at the top of the test file for clarity. Does that work?