50 years ago I worked as a government proofreader. Long galley proofs were checked against original document by a pair of us. each of us had a straight edge ,a red pencil, a black pencil and a NON-REPRODUCING BLUE pencil (aqua). these were the pencils you sharpened by shaving down the wood surrounding the "lead". reader read the original to the proofer who marked the galley when it didn't match the original. Red for an error the printer had made, Blue if the print was correct, but maybe the spacing needed tightening or punctuation was wrong. Proofer wrote the explanation in black pencil in the wide margin opposite where the error was. The annotated page was sent back to the printer to correct and a new proof was pulled and brought to us the next day along with the marked up pages from the previous day. The marked up page was for day 2's reader and the proofer marked up the fresh galley proof in the same way.
Machines don't register /reproduce blues and green ( thus Green screens) and you can't xerox money to make more.
I worked for a little company ( under 10 employees) that produced a monthly newsletter in-house and sold it on a subscription basis for over $300. The newsletter was printed in green ink on mint green paper, so it could not be run through a subscriber's office copy machine to make multiple copies to hand out in the office. Of course the was a substantial discount to purchase additional green copies, you just couldn't make your own.
By 2024, most of us have an ink jet printer, so we can print in color, but can't afford to default to it ; I tend to default to the b/w laser printer that collects dust in the next room but connects via WIFI.
Please take pity on those of us who like to run off hard copies and limit using green or blue-green . Some of us can't see things that disappear in grey scale.
I only noticed last week that there were pale green icons on the home page. I thought it was the fact that I am iconologically ? illiterate. I can't see or decipher them
