// This is free and unencumbered software released into the public domain. // Happy coding!!! - GtkSharp Team using Gtk; namespace Samples { [Section(ContentType = typeof(ColorButton), Category = Category.Widgets)] class ColorButtonSection : ListSection { public ColorButtonSection() { AddItem(CreateColorButton()); } public (string, Widget) CreateColorButton() { var btn = new ColorButton(); // Set RGBA color btn.Rgba = new Gdk.RGBA() { Red = 0, Green = 0, Blue = 255, Alpha = 0.2 // 20% translucent }; // Or Parse hex btn.Rgba.Parse("#729FCF"); // UseAlpha default is false btn.UseAlpha = true; return ("Color button:", btn); } } }