         // If it is the "delete" unicode character.
         if title == "\u{232b}" {
             (textDocumentProxy as UIKeyInput).deleteBackward()
-            // selectButton(rowIndex: selectedRowIndex, buttonIndex: selectedButtonIndex+1) // TODO: DELETE
         }
         else {
             (textDocumentProxy as UIKeyInput).insertText(title!)

        addNextKeyboardButton()
        addAlphabetButtons()
        
        // Set the [0][0] as the initially selected character.
        selectButton(rowIndex: 0, buttonIndex: 0)
    }
    
    // Renders a button to switch to the next system keyboard.

            button.backgroundColor = UIColor(white: 0.9, alpha: 1)
            button.layer.cornerRadius = 5
            
            button.layer.borderColor = UIColor.black.cgColor
            
            buttons.append(button)
        }
        
