PLEASE bring back the Export Canvas to Photos button (from the console); can't even find a function to copy canvas to clipboard so I can use a startup script with code like photos.save_image(clipboard.get_image()).
Argh. Now I regret updating.(Only me?)

canvas.draw_clipboard(0,0,scrSize[0],scrSize[1]) lets you draw on a copied image. What's its inverse?

Are you sure you had an image on the clipboard when you called clipboard.get_image()? (And how did you evaluate the return value?) Even if it works as advertised, we'd need a function to copy the current canvas to clipboard. (Why can't I even find that?) This is why I dread updates of my favorite apps.

Note to self (and others so afflicted)—
Starting with this seemed to fix it:
set_fill_color(1.0,1.0,1.0)
fill_rect(0,0,scrSize[0],scrSize[1])

where i've done this at global scope:
scrSize=(1136,640) # iPhone 5
set_size(*scrSize) # min 16, max 2048

(my canvas is meant for landscape viewing)

scrSize=(1136,640) # iPhone 5 (dots)

That snippet assumes the desired image is on (part of) the clipboard. I'll have to tweak it to use the whole canvas...

@brumm :
Thanks! Now I have a good use for the new auto load feature. I'll make that a script called ExPortit(). 🤓

The background color from my Theme (UI color scheme), for which I prefer black, is inherited by canvas, which had defaulted to white. So now I have to do everything in inverted video (by triple/tapping my iPhone's home button)! Is this a bug? Must drawing start by explicitly filling the canvas with white?

My scripts create graphs on canvas.
The canvas view screen no longer has the familiar export button! How do you export the full canvas (without UI controls obscuring the edges) to camera roll now?