@Sebastiano To add to what @DavidCarlisle said, I would say don't comment on this at all. As David said earlier, the question wasn't that great to begin with, so if someone want to downvote it, they can. They even left a comment as to why, which means it wasn't an unmotivated vote. So learn from the experience and don't get into discussions with people about their votes.

Quack!

@HaraldHanche-Olsen oh no

@PauloCereda hopefully there will be enough for me to get dinner too, not just @HaraldHanche-Olsen

@DavidCarlisle oh no

@JosephWright My phone just reminded me we have a call in 10 minutes, I'd completely forgotten:-)

@DavidCarlisle ooh a phone

josephwright.github.io/2018/11/26/blog-on-the-move

@JosephWright oh no

@PauloCereda nope

@JosephWright doesn’t deal wit the website style,

Meow

your fake impersonations don't fool me

@DavidCarlisle oh no

@DavidCarlisle ooh skills

@PauloCereda it was obvious. Everyone knows that cats don't play cricket.

@DavidCarlisle ooh cats are smart

@samcarter I stand corrected

@DavidCarlisle maybe they are ducks disguised as cats

@DavidCarlisle Huh? Ive got 'What's missing'

@JosephWright i see wit not with in Exporting the content doesn’t deal wit the website style,

@DavidCarlisle Yes, it's 'just the words'. I could have grabbed the raw HTML, but that wasn't my aim

@JosephWright we seem to be talking cross purposes:-) missing h in with

@DavidCarlisle Ah

@JosephWright I'm an expert on typos:-)

@HenriMenke For the present, I've dropped the cookie stuff

@HaraldHanche-Olsen I see titles in the HTML ...

@DavidCarlisle Fixed, thanks

@JosephWright me too

LuaTeX doing color emojis.

@KhaledHosny very useful:-)

@DavidCarlisle my date will finally stop yelling at me for printing monochromatic cards. :)

@DavidCarlisle You would be surprised how many people ask for this, even in math mode (which I do not support). Any way, I love emoji not because I often use them, but because they enabled colored font formats which I have been longing for, and often cause many Unicode handling bugs to get prioritized and fixed.

@DavidCarlisle Also cats are eatable

@CarLaTeX I suppose you have them on pizza?

We ducks are good at math. :)

@PauloCereda That is surd, absurd.

@mickep oh no

@mickep Mr. A. B. Normal.

@DavidCarlisle I leave it to you ^^^

@PauloCereda Yes, see here. ;-)

@KhaledHosny what is new here? I had coloured emoji already last year.

@UlrikeFischer There are different formats used by different fonts, this is Noto Color Emoji which causes LuaTeX to not generate a PDF when used with luaotfload. May be you used Segoe UI Emoji which uses a different format (the same format as my colored Quran font). There is also Apple Color Emoji which uses a third format, it should work but I didn’t test it.

! error:  (file /usr/share/fonts/noto/NotoColorEmoji.ttf) (ttf): sfnt table not
 found
!  ==> Fatal error occurred, no output PDF file produced!

The error does not say what table it is missing, but the font has no outlines only glyph bitmaps, so probably the font subsetting/embedding code does not like. The trick is to extract the bitmaps and use them as images, so the font does not needed to be embedded in the PDF file.

The font loader seems to have support for Apple Color Emoji which needs similar treatment, but it also requires external tools to convert the images to PDF (no idea why), my code doesn’t require any external tools.

@JosephWright It happens. But why did you ping me about it?

@PauloCereda I would have expected the answer to be more like …

… uh, I can't upload an image. So I post the latex code instead: $\frac1{\sqrt{\quad}}$.

@HaraldHanche-Olsen if a quad is a 1em square is \sqrt{\quad} 1em?