I have installed Noto Color Emoji font on my system (e.g. Arch: noto-fonts-emoji), but I still see this black-and-white version in the terminal (Konsole):
However, I expected the color one as displayed in other applications:
I have installed Noto Color Emoji font on my system (e.g. Arch: noto-fonts-emoji), but I still see this black-and-white version in the terminal (Konsole):
However, I expected the color one as displayed in other applications:
The emojis are shown by the font selected in the terminal/console and the ones from the emoji fonts in color are not taking precedence over them. So it's basically the (limited) emoji support of your console font that masks the use of Noto Color Emoji. One needs a fontconfig to raise the priority of the character (code points) in the emoji fonts to display those from the Noto Color Emoji font.
For Arch Linux, this is provided by the AUR package noto-color-emoji-fontconfig.
If you want to configure it manually, add the fontconfig file there manually in /etc/fonts/conf.d/75-noto-color-emoji.conf.
Then restart the application (e.g. Konsole) and it should work: