On some Linux environments, such as GNOME-Shell, the menu bar looks really clunky and out of place. Please add an option to hide it like other Electron apps do (e.g. Atom). Would be greatly appreciated! Thanks!
Can you share to me a screenshot of how looks Rambox with the menu? And Atom without menu?
Did you check the "Auto-hide Menu bar" option in the Preferences?
I don' see this option in the preferences sorry. I am running Version 0.4.5 on Arch Linux with Electron 1.4.7

Oh right, we hide that option in Linux because in popular distros you can't hide it.
But there is a way you can hide it. Be sure to have Rambox closed, so then you have to find the ~/.Rambox/config.json file of Rambox, edit it and change the hide_menu_bar property to true. Open Rambox again.
Bingo, did just what I wanted! I have also seen this advice for other apps. Just in case anyone else needs to find the config.json mine was in the __~/.config/Rambox/__ directory.
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Oh right, we hide that option in Linux because in popular distros you can't hide it.
But there is a way you can hide it. Be sure to have Rambox closed, so then you have to find the ~/.Rambox/config.json file of Rambox, edit it and change the
hide_menu_barproperty to true. Open Rambox again.