If superalert's options parameters are set to {height=130 width=150}, for example, the alert window opens at the set height but the full width of the screen. If the positions of the height and width settings are reversed inside the brackets, the window opens at full screen height but to the width set.
Adding a space after the final number and the close bracket {height=130 width=150 }, works as expected.
This means that some examples in the superalert help page, for example superalert message,{height=-36 width=500}, will not work as expected.
I did some tests on my Big Sur Mac. I am not having issues with the width or height settings of the superalert, but I can not get the image / icon option to work.
In the documentation of the image / icon option of the superalert statement, there is a reference to Panorama’s “Flash Art Gallery”, that IMHO does not exist in Panorama X. I think this part of the documentation needs some clarification.