How to edit the default theme content or language editor

video1.0<iframe src="https://www.loom.com/embed/1809aa16ba704b90a704275dd43c44bb" frameborder="0" width="1630" height="1222" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>12221630Loomhttps://www.loom.com12221630https://cdn.loom.com/sessions/thumbnails/1809aa16ba704b90a704275dd43c44bb-1715021968120.jpg185.633How to edit the default theme content or language editor