It will have the green squiggly line for a syntax error. If the user hits enter, the red outline and error message will appear.
The map will appear on the left, inventory on the right, and the room description above. Containers in your inventory will have view tree.
It will have the red squiggly line for a spelling error or recognized word. If the user hits enter, the red outline and error message will appear.
The new system will be able to handle more than one error at a time. Furthermore, using the verb "examine" will usually not be needed since all the objects that can be inspected will have an "i" icon by them. Simply hover the mouse cursor over the "i" to inspect or examine.