Highland doesn’t correct spelling by default, but macOS does. If you need to turn it off, right-click on the editor and turn off Correct Spelling Automatically under the Spelling and Grammar menu. You can also turn off autocorrect and other macOS text transformations, like automatically capitalizing words, by going into System Preferences > Keyboard > …
keyboard
Keyboard Shortcuts
Most commands in Highland can be done with keyboard shortcuts. Here’s a complete list! Text Formatting Bold ⌘ Cmd + BItalic ⌘ Cmd + IUnderline ⌘ Cmd + UHighlight ^ Ctrl + +Strikethrough ⌘ Cmd + ~Center ⌘ Cmd + >Omit ⌘ Cmd + YInsert Note ⌘ Cmd + /Bigger ⌘ Cmd + +Smaller ⌘ Cmd + –Insert Link ⇧ Shift + ⌘ Cmd + LConvert …