These will not work on Scrolls/Signs, as they assign the ''['' symbol to scrolls as interpereted via Robotic code:
[ "@7~0 Look, Reverse Text! "will turn out wrong as: @7~0 Look, Reverse Text!
But, it currently works in Robotics:
% "@7~0 Look, Reverse Text! "turns into the text: Look, Reverse Text! (color c70, Black on Grey)