Somehow I got “English (Singapore)” as the default app language.

I also have English (US) as default input language, so I want to use it as both default-input and default-app. So how do I remove English(Singapore)?

1. in the PreferredLanguages list, click on the desired language to see the new buttons showing up underneath
2. click the up arrow until the English(Singaproe) is forced off the top to become 2nd. Only then can it be removed.
3. click on English(Singapore) to see the “remove” button showing up. Use the button to remove English(Singapore)