void gtk_widget_override_color ( GtkWidget* widget, GtkStateFlags state, const GdkRGBA* color )
Sets the color to use for a widget.
All other style values are left untouched.
This function does not act recursively. Setting the color of a
container does not affect its children. Note that some widgets that
you may not think of as containers, for instance
are actually containers.
This API is mostly meant as a quick way for applications to change a widget appearance. If you are developing a widgets library and intend this change to be themeable, it is better done by setting meaningful CSS classes in your widget/container implementation through gtk_style_context_add_class().
This way, your widget library can install a
GTK_STYLE_PROVIDER_PRIORITY_FALLBACK priority in order
to provide a default styling for those widgets that need so, and
this theming may fully overridden by the user’s theme.
Note that for complex widgets this may bring in undesired
results (such as uniform background color everywhere), in
these cases it is better to fully style such widgets through a
GtkCssProvider with the
Use a custom style provider and style classes instead.