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ruby gtk3 entry problem

I have a Ruby application that I have migrated to gtk3. Most things are working but changing the background color does not work for Entry's . I It works fine for buttons. The commands are of the form:

color = Gdk::RGBA.parse("lightblue1")
widget.override_background_color(0, color)

gtk3 wants RGBA colors. Another report of this problem said they only got it working using css . This requires using style & providers. Are there any examples of how to do this in Ruby.

dml12

ASKER

It appears that it is a problem with backgound-color. I found an example using css provider that I modified. All the settings work except background-color. The css code follows where numeric_control is a widget name.

provider1 = Gtk::CssProvider.new
provider1.load :data => '#numeric_controll1 {
color: green;
background-color: black;
border-style: solid;
border-width: 16px;
border-color: red;
}'

styleContext = Gtk::StyleContext.new
styleContext.add_provider provider1, GLib::MAXUINT

apply_css(self, provider1)

def apply_css(widget, provider)
widget.style_context.add_provider(provider, GLib::MAXUINT)
if widget.is_a?(Gtk::Container)
widget.each_all do |child|
apply_css(child, provider)
end
end
end

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