In the meantime, it looks like you could handle this with custom css. Just keep in mind that custom css is based off of component class names, which could change over time (without warning to editors), so it's something you'd need to keep an eye on. I've linked the general how-to docs for implementing custom css. You'll need to preview the app and use your browser dev tools to find the class name that you want to apply the css to. Then, go back into edit mode & add your css under the settings