Is that iOS? It looks different here on Android and I can't tell how much of it is because I customized it. I don't quite remember how I customized it but I remember that I did.
My buttons are colored orange instead of blue, that's definitely something I would do. The share button looks different, as does the top bar with the back button.
This is the true reason metric is better. A lot of people think it's inherently better for various reasons: it's decimal and it's based on the constants of nature. While nice, that doesn't make it a better system.
The reason it's a better system is that there has only ever been one metre, there has only ever been one litre, there has only ever been one kilogram. If you use any metric unit there is no ambiguity, there has never been ambiguity and there never will be ambiguity. There's just one system.
For the imperial system and all of its branches and predecessors, that's just not the case. The foot has had different measures, the mile has had different measures, the fl oz still has different measures as you noted. You can speak to someone and say some measure, they hear your exact words and interpret it as some different measures.
That's the real problem with imperial, and that's why metric was invented.