message: Add const from_rgba, for RGBA initialization
diff: @@ -65,7 +65,14 @@ impl Color {
  ///
  /// [`Color`]: struct.Color.html
  pub const fn from_rgb(r: f32, g: f32, b: f32) -> Color {
  - Color { r, g, b, a: 1.0 }
  + Color::from_rgba(r, g, b, 1.0f32)
  + }
  +
  + /// Creates a [`Color`] from its RGBA components.
  + ///
  + /// [`Color`]: struct.Color.html
  + pub const fn from_rgba(r: f32, g: f32, b: f32, a: f32) -> Color {
  + Color { r, g, b, a }
  }
  /// Creates a [`Color`] from its RGB8 components.
  