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The Das 5QS are all and individually programmable, so you can turn them off. However, since they are double injected molded, with clear plastic forming the letters, it really requires some amount of light to be able to see the keys, even in daylight conditions.
For my part, I spent good money to keep my computer I built from being lit up like an out of season christmas tree, which seems to be all the rage these days. I understand about lighting. I feel much the same way. That having been said, I can only describe the Das 5QS reasonably lit letters/symbols as "pleasant" and "functional" - particularly since I can also change them. I have things set up so my homerow is a different color for quick access. I also have some of my keys tied to a CPU usage meter but I don't use it in practice. I just thought it was neat. The only reason I don't turn it off altogether mind you, is they don't "look" lit, at least in the daytime, and at night, it's only just enough to be pleasant. There's no bleed to your desk (except from the sides of the keyboard, which you can turn off)
To err is human. Fortune favors the monsters.
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I really don't understand the need to put LED's in everything these days - what possible use was there for LED's in my headphones?* 
* The use of past tense was deliberate here, they were "persuaded" to no longer emit ... 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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I have a small piece of note paper covering the three LEDs on my keyboard. The lights are only ever on when I hit a wrong key anyway.
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Quick fix: Take a course in Touch Typing 
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Last time I touched my typist I nearly got arrested. 
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We got married in Georgia...or was it Tahoma? Not sure I was drugged and dragged and woke up just in time for the vows.
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It was a military wedding.
Well, ... there were guns there, let's put it that way!
(Old Red Skelton/Clem Kididdlehopper bit) 
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I did, in high school, it didn't take.
Besides, typing code is nothing like typing prose. If you spend more time writing documentation than coding, then maybe that's a benefit, but you don't, do you?
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"double mold injected"
if your keycaps aren't advertised as the above, forget it. They'll wear out.
To err is human. Fortune favors the monsters.
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OriginalGriff wrote: 'A', 'S'. 'CTRL', 'SHIFT', '->', and '<-' were gone completely
You've done well. My keyboard hasn't had W, E, R, T, I, O, A, S, D, F, G, K, L, C, V, N, M, < or > for years. Actually that was a useful exercise, hitting all the "blank" keys - I was wondering what some of them did.
Really limits my choices for variable names though, especially since I've not seen a vowel (except U) since 2019.
And there's a long key at the bottom that I don't think ever was labelled in the first place...
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OG
Don't know if I am repeating, but any bright blue LED's will cause problems with human sleep over time.
Scientific proof.
So avoid them. Not so bright, not so much.
I have very dim blue backlight on my temporary keyboard
another reason for shopping around for new one.
"A little time, a little trouble, your better day"
Badfinger
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Lempel gone on the 4th of February, and Ziv just yesterday, on the 25th of March...
"If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization." ― Gerald Weinberg
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Eh ?
In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP
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"Prof. Abraham Lempel, Inventor of PDF & MP3 Compressions"
I never ever heard about Lempel being involved in MP3 development. So I checked Wikipedia on MP3: It names 6 developers, none of them being Lempel. "And others", says the list, with a link: "Lempel" is not found on the referenced page. Lempel certainly did not develop the primary, psychoacoustic (and lossy) compression method of MP3!
I also never heard of Lempel developing PDF, so I checked Wikipedia on PDF as well, including the "History of PDF". No mention of Lempel in either article.
The Wikipedia article on Abraham Lempel makes no mention of neither MP3 nor PDF.
Lempel and Ziv (and Welch) did some tremendous work in developing the most influential lossless compression algorithm of all times. The importance of this should most certainly not be underestimated or degraded.
The journalist's problem is that 95+ % of his readership has never heard of LZ77 or LZW. Thousands of formats use some LZW variant; Lempel cannot be credited for all of them. So, let me dig out a couple that are well known to common man, and attach Lempel's name to those! It doesn't matter if Lempel himself never even heard about those formats (well, he certainly did know both PDF and MP3!); the essential thing is to associate his name with something great!
So why didn't the journalist mention e.g. Microsoft .docx? Probably because the majority of the readership would refuse to believe it. You can make them believe that Lepel could take credit for MP3 or PDF, because they know very little about the development of those formats, so let's go for those rather than .docx!
Many (40+) years ago I read an informal study of major technical innovations, among them the car, telephone, radio and several others, and correlated the information in the major encyclopedias in the US of A, England, France, Germany, Italy (maybe others as well; I don't remember all the details): Which importance did each 'national encyclopedia' give to developers of their own country to the technology? To which degree did they downscale the contribution from persons of other nationalities? When presented side by side, the results could be described as 'hilarious'.
After I read this study, I always have been somewhat skeptical to any source trying to glorify beyond limits any person of its own nationality. Lempel doesn't need that! His work certainly was so great that it can stand on its own, without trying to give him credit for other format that he never touched, as a developer.
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trønderen wrote: So I checked Wikipedia
You might be right in this case, but you should rely on better sources than that.
The difficult we do right away...
...the impossible takes slightly longer.
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Sure, but when you have been in the IT business for 40+ years and never heard a single hint of neither Lempel nor Ziv being involved in either PDF or MP3, so at the outset, you are 99.9% sure, and Wikipedia confirms your 99.9% certainty (by not saying a word about any connection, which it certainly should have, if it was a fact), then Wikipedia may serve as a reference point for other people who have been in the business for a shorter time than I have.
I certainly do not trust Wikipedia, but it may serve as a decent starting point for an information search. In this case, I think that being right in the middle of it for 40+ years (including teaching the principles of LZ77 and MP3 at college level) constitutes sufficient advance research that I can support the Wikipedia information in this question.
If I were misinformed, I would think that some CPians would provide some reliable references to show that I am wrong. I haven't seen traces of that yet.
(I have a friend who has been living in Sweden for 40 years: He just knows of this Swede who is the sole inventor of MP4 (I believe that my friend knew the guy). The invention was stolen out of his hands, along with a handful other inventions of his. I don't know if this Swede knew Lempel and Ziv - maybe those were the culprits. Or maybe he stole their MP3 contributions and created MP4 from that. My friend bluntly rejects any discussion of the issue, and if given references to anything contradicting his firm beliefs, he just pushes it aside and turns his back to it. He only believes in the truth.
In my fantasy, I like to play with the idea of gathering together a group of such firm believers in who is to take the credit for the invention of this and that, and let them have a dogfight to straighten out the question, to come to a conclusion so that we can rewrite the history according to what they agree upon after the fight. On the other hand, maybe we already have such a thing, in Wikipedia  !)
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ditto to OG
"A little time, a little trouble, your better day"
Badfinger
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The other one, Welch, (L Z W), is already gone in 1988.
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#Worldle #429 2/6 (100%)
🟩🟨⬜⬜⬜⬅️
🟩🟩🟩🟩🟩🎉
https://worldle.teuteuf.fr
Knew where it was but had to peek because bad memory
"A little time, a little trouble, your better day"
Badfinger
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#Worldle #428 1/6 (100%)
🟩🟩🟩🟩🟩🎉
https://worldle.teuteuf.fr
easy one
"A little time, a little trouble, your better day"
Badfinger
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Wordle 645 3/6
⬛⬛⬛🟨🟩
⬛🟩🟨⬛🟩
🟩🟩🟩🟩🟩
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Wordle 645 3/6
⬜⬜🟨🟨🟨
🟩⬜🟨🟨🟩
🟩🟩🟩🟩🟩
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