In memory of the man who put red and green squiggles under words

	In memory of the man who put red and green squiggles under words(devblogs.microsoft.com)
	579 points by saikatsg 112 days ago \| 103 comments
	tl;dr: Tony Krueger, a longtime Microsoft Word developer, passed away. He's credited with making spell-check non-blocking and introducing the now-ubiquitous red (and later green) squiggly underlines for misspellings and grammar errors. He also ported Chip's Challenge to Windows by reverse-engineering the MS-DOS version without source code.
	HN Discussion: ↓Prior software like Prowrite on Amiga had real-time spell checking with red squiggles before Word ↓Squiggles are annoying, distracting, or unhelpful, especially in multilingual or non-standard writing contexts ↑Appreciation for the squiggle UI pattern as an intuitive and impactful design decision ↑Software developers deserve more visible credit for their contributions, like movie credits •Wikipedia citation for the Chip's Challenge port circularly references Chen's own article