useStyles returns $ObjMap<S, ReplaceField> type. On this type the usual Array.from() / .values() don't work. I didn't find a better way of doing this. And I want to have an array of styles to use it in my function (createRecursiveDrawerItemsData) that recursively calculates the data for drawer items, so that I could find the right style based on the recursion depth (since styles are dependent on depth of a thread in the threads tree, ie communities are on depth 0, their children on depth 1 etc. and all communities are styled the same with style level0Label, all their children are styled the same with style level1Label etc. ).