Hello everyone， I want to know how to change the theme font in Inkscape 1.0 on windows, In Inkscape 0.92.4, I can change it by change the "gtkrc" file in "\share\themes\MS-Windows\gtk-2.0", but Inkscape 1.0 may based on gtk3.0,  so I can't find where to change the font setting file in windows.  could you give some advices?

This is done via CSS file now, as far as I know. You should be able to overwrite any of the CSS files in share/inkscape/ui in your user configuration ui folder.

Didn't try it out, you may need to experiment a bit and read up about how to set fonts in GTK3.

Downloaded latest 1.2.2 for windows due to extensions not working on Linux. They seem to work on Windows but I get this terrible scrawny unantialiased interface font:

How can I change the size and the type? Did you ever learn how?

The size can be set in the preferences. The font type is your system font (as far as I know)

It's definitely not the same, look at the Ps. But you were saying something about changing a CSS file. Where can I learn about it? What file is it?

You'll find the info you need

* here: https://docs.gtk.org/gtk3/css-properties.html

* here: Edit > Preferences > System : User themes

* and here: https://stackoverflow.com/questions/29501329/styling-gtk-with-css-on-windows

(didn't work for me, but maybe it would have required a reboot).

Did you add a new line to one of those css files? Perhaps you only need to log off and back on. Let me know if it works before I try the same