Here's a really quick one I decided to spin up this morning:
Install title-case
let { titleCase } = await npm("title-case");let selectedText = await getSelectedText();let value = titleCase(selectedText);await setSelectedText(value);
...also, a tiny variant on the above I like to call The Proper Namifier™
let { titleCase } = await npm("title-case");let selectedText = await getSelectedText();let value = titleCase(selectedText) + '™';await setSelectedText(value);