DejaVU is used by default in more linux distributions, that causes that some emojis are not shown in color (from, for example, Noto Color Emoji) and, instead, an ugly mix between the emojis in black and white from dejavu and other emojis from Noto Color to be shown in many web pages as explained at: https://bugs.webkit.org/show_bug.cgi?id=191976 https://gitlab.freedesktop.org/fontconfig/fontconfig/issues/136 https://bugzilla.mozilla.org/show_bug.cgi?id=1509988 https://bugs.chromium.org/p/chromium/issues/detail?id=908541 This has lead to even people going back to the old Bitstream Vera fonts to avoid the emojis provided by dejavu: https://github.com/eosrei/emojione-color-font/issues/17 Even there has been some tries to provided a patched dejavu without this fonts: https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=ttf-dejavu-emojiless Thanks
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