Ubuntu 20.10
* made executable, run, loaded an example document -> this works
* searching in the help works
* but trying to export to pdf (my own document, document from help) bails out with the following error (here sharing only console messages after all the usual "approximating font tuple" warnings
TeXmacs] With linked TrueType support
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::end: Painter not active, aborted
(texmacs.bin:1831532): Gtk-WARNING **: 17:56:19.169: Could not load a pixbuf from icon theme.
This may indicate that pixbuf loaders or the mime database could not be found.
**
Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3)
Bail out! Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3)
PS. Here like when using the .deb package the UI looks ugly due to small icons and too big menu fonts. I am running TeXmacs in 4K with 2x scaling under GNOME - I suppose I should tweak a QT setting to rescale the menu fonts?