Really hard to do in a terminal.
If you have errors you can see very fast where they are located/clustered in the file and can already tell just by the shape of the program where it is.
Another example: GUI color picker directly in my editor as a tooltip above color values in css/html templates.
Another example: inline preview of latex or Template fragments.
That really is one hell of a hot take 😀
I for one really love the zoomed out preview on the right that has become popular in recent years.
https://jason-williams.co.uk/assets/img/2020/debugging_screenshot.png
Really hard to do in a terminal. If you have errors you can see very fast where they are located/clustered in the file and can already tell just by the shape of the program where it is.
Another example: GUI color picker directly in my editor as a tooltip above color values in css/html templates.
Another example: inline preview of latex or Template fragments.