As an example, is GTK’s GtkCssProvider to GtkStyle like Qt’s QProxyStyle is to QStyle?
If this question is (for a reason unbenknownst to me) nonsensical, it’s because I’m a novice in GTK, whose interest in these components is merely understanding where theming can sometimes fail, so that I can write more actionable BRs.
There’s no such thing as GtkStyle, unless you’re confusing GTK4 with GTK2.
If you mean GtkStyleContext, then: a style context contains all the styling information associated to a widget; a GtkCssProvider is the object that loads the CSS style definitions.
Thanks again, @ebassi - those were what I was searching for. I reckon I’d cited some old documentation.