Otared Kavian schrieb am 26.04.2019 um 14:10:
Dear all,
When typesetting an old list of exercises, I noticed that when \showgrid is
active and a luafunction is called, there is some unwanted and strange
background colors (gray and blue, or yellow and blue). Thes background colors
seems to show up on an unfilled page when a lua function is used, and I could
come up with the following minimal example which gives the attached PDF.
Could someone, please, tell me what I am doing wrong?
\showgrid highlights different page elements with colors but you can
change the output
https://www.mail-archive.com/ntg-context@ntg.nl/msg90312.html
Wolfgang
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