message: Remove leftover `debug_color` in `styling` example
diff: @@ -135,7 +135,7 @@ impl Sandbox for Styling {
  mod style {
  use iced::{
  button, checkbox, container, progress_bar, radio, scrollable, slider,
  - text_input, Color,
  + text_input,
  };
  #[derive(Debug, Clone, Copy, PartialEq, Eq)]
  @@ -146,13 +146,6 @@ mod style {
  impl Theme {
  pub const ALL: [Theme; 2] = [Theme::Light, Theme::Dark];
  -
  - pub fn debug_color(&self) -> Color {
  - match self {
  - Theme::Light => Color::BLACK,
  - Theme::Dark => Color::WHITE,
  - }
  - }
  }
  impl Default for Theme {
  