conrod::color
pub const DARK_RED: Color = Color::Rgba(164 as f32 / 255.0, 0 as f32 / 255.0, 0 as f32 / 255.0, 1.0)
=
Color::Rgba(164 as f32 / 255.0, 0 as f32 / 255.0, 0 as f32 / 255.0, 1.0)
Scarlet Red - Dark - #A30000