Progress bar theme set to 'fallback' regardless of unicode locale on Fedora Linux

[alxgrtnstrngl]

It seems like progress bar theming isn't being properly selected when running commands like npm install on Fedora 27. Regardless of whether I run npm set unicode=true the theme always defaults to fallback and not the nicer theme like is does on macOS. I've checked my locales and everything like LC_ALL and LC_CTYPE in addition to the terminal emulator have it set to UTF-8 or 'en_US.UTF-8'. I'm running npm version 5.6.0 and I believe that uses gauge version 2.7.4.

[alxgrtnstrngl]

[alxgrtnstrngl]

[alxgrtnstrngl]

npm config list --json

[alxgrtnstrngl]

When running on Fedora 27 using gnome-terminal I get the 'fallback' theme:

[alxgrtnstrngl]

@iarna Any updates on this issue?