_NEWIMAGE() should be fixed to always take 3 parms

[RhoSigma]

A newimage, without any third parameter, defaults to a SCREEN 0 image -- which is text only.

To be exact, according to the wiki (but didn't try), it duplicates whatever the current _DEST page is in that case.

Of course, if _NEWIMAGE is the first command in your program, then this is definitly a SCREEN 0 page.