MBS Plugin in version 10.5 is available and you can try our bracket highlighting for macOS:
For macOS we added a new feature to the calculation dialog to highlight matching brackets. If you put the cursor on a square, curly or regular bracket, the plugin looks for the matching bracket and provides a blue background for both. This usually ignores quoted text, except if your selection is within quoted text. Then we look for brackets in this text to help with e.g. SQL commands.
You can turn this on or off in the preferences dialog. As usual, those function can be configured in script via SyntaxColoring.ShowBracketPositions.SetEnabled function.