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Update View/VID documentation with regard to units used
Since some time the View engine became DPI-aware. Every pair! is expressed in some logical screen units, not pixels. Documentation should clearly state that in a separate paragraph and use word "screen unit" instead of "pixel" everywhere.
Looks like only 3 mentions of pixels in the View doc (one of which says "screen pixel). How do others deal with this? We have the image! datatype as well, which really is pixel based. The main points of confusion may be in areas like draw, which may be what prompted you to note this.
Draw uses the underlying coordinate system
draw WxH [] and draw make image! [] use image pixels
view [... draw [...]] and even view [... draw [image ...]] are scaled
But the important part is a paragraph that emphasizes that.
Change it to state dpi instead of pixels?
"offset and size are specified in screen pixels."
"|size| Size of the screen display in pixels. Set by the View engine when started (pair!)."
"Measure the size in pixels of a text in a face (taking the selected font into account)."
