In terms of window decorations, looks like twm with default settings. Standard window manager to ship with what is now Xorg.
EDIT: For emacs, those are also default colors, I think, for at least some point. X11 color names HarvestWheat and ForestGreen, if memory serves aright.
EDIT2: No, that’s probably not a graphical emacs instance, because the title is “sh”. They’re probably running sh and then running console emacs (or vim or something else, I guess, can configure either to look like that) and don’t have their shell set up to pass the escape sequences to tell the virtual terminal program to update the window title.
EDIT3: Also, the color’s the default twm color, but that’s not the default twm decorations. That’s…damn, I can’t remember the name of that widget set.
In terms of window decorations, looks like twm with default settings. Standard window manager to ship with what is now Xorg.
EDIT: For emacs, those are also default colors, I think, for at least some point. X11 color names HarvestWheat and ForestGreen, if memory serves aright.
EDIT2: No, that’s probably not a graphical emacs instance, because the title is “sh”. They’re probably running sh and then running console emacs (or vim or something else, I guess, can configure either to look like that) and don’t have their shell set up to pass the escape sequences to tell the virtual terminal program to update the window title.
EDIT3: Also, the color’s the default twm color, but that’s not the default twm decorations. That’s…damn, I can’t remember the name of that widget set.
goes poking around
Motif. And apparently mwm used Motif widgets.
https://en.wikipedia.org/wiki/Motif_(software)
https://en.wikipedia.org/wiki/Motif_Window_Manager