artist-text-see-thru is a compiled Lisp function in `artist.el'.

(artist-text-see-thru X Y)

Prompt for text to render, render it at X,Y.
This is done by calling the function specified by
`artist-text-renderer-function', which must return a list of strings,
to be inserted in the buffer.

Text already in the buffer ``shines thru'' blanks in the rendered text.