Struct Visuals 

pub struct Visuals {

    pub bg_color: Color,
    pub panel_fill: Color,
    pub top_bar_bg: Color,
    pub window_fill: Color,
    pub window_title_fill: Color,
    pub window_title_fill_drag: Color,
    pub window_shadow: Color,
    pub window_stroke: Color,
    pub window_title_text: Color,
    pub window_close_bg: Color,
    pub window_close_bg_hovered: Color,
    pub window_close_fg: Color,
    pub window_resize_hover: Color,
    pub window_resize_active: Color,
    pub text_color: Color,
    pub text_dim: Color,
    pub text_link: Color,
    pub text_link_hovered: Color,
    pub accent: Color,
    pub accent_hovered: Color,
    pub accent_pressed: Color,
    pub accent_focus: Color,
    pub widget_bg: Color,
    pub widget_bg_hovered: Color,
    pub widget_stroke: Color,
    pub widget_stroke_active: Color,
    pub track_bg: Color,
    pub scroll_track: Color,
    pub scroll_thumb: Color,
    pub scroll_thumb_hovered: Color,
    pub scroll_thumb_dragging: Color,
    pub separator: Color,
    pub selection_bg: Color,
    pub selection_bg_unfocused: Color,
}

All colours used by the widget library.

The canonical way to access the active palette inside Widget::paint is:

let v = ctx.visuals();
ctx.set_fill_color(v.window_fill);

Fields

bg_color: Color

Canvas / app background (behind all floating windows).

panel_fill: Color

Sidebar / panel background.

top_bar_bg: Color

Top menu bar background.

window_fill: Color

Window content-area background.

window_title_fill: Color

Window title bar background (idle).

window_title_fill_drag: Color

Window title bar background while dragging.

window_shadow: Color

Drop-shadow colour (semi-transparent black/dark).

window_stroke: Color

Thin border drawn around the window.

window_title_text: Color

Title bar text colour.

window_close_bg: Color

Close button background (idle).

window_close_bg_hovered: Color

Close button background (hovered).

window_close_fg: Color

Close button × glyph colour.

window_resize_hover: Color

Resize edge / corner highlight colour when hovered (not yet dragging).

window_resize_active: Color

Resize edge / corner highlight colour while actively dragging to resize.

text_color: Color

Body text colour.

text_dim: Color

Secondary / dimmed text (hints, labels).

text_link: Color

Hyperlink colour (idle).

text_link_hovered: Color

Hyperlink colour (hovered).

accent: Color

Used for checked states, active tabs, slider fill, button backgrounds.

accent_hovered: Color

Accent colour when hovered.

accent_pressed: Color

Accent colour when pressed / active.

accent_focus: Color

Low-opacity accent used for focus rings.

widget_bg: Color

Widget background when unchecked / idle.

widget_bg_hovered: Color

Widget background when hovered (unchecked).

widget_stroke: Color

Widget border / outline (unchecked).

widget_stroke_active: Color

Widget border / outline (checked / active).

track_bg: Color

scroll_track: Color

scroll_thumb: Color

scroll_thumb_hovered: Color

scroll_thumb_dragging: Color

separator: Color

selection_bg: Color

Background colour behind selected text while the widget is focused.

selection_bg_unfocused: Color

Background colour behind selected text while the widget is NOT focused. Uses a neutral grey to signal that the selection is inactive.

Implementations

impl Visuals

pub fn dark() -> Self

Dark-mode palette matching egui’s approximate dark colour scheme.

pub fn light() -> Self

Light-mode palette matching egui’s approximate light colour scheme.

pub fn for_preference(pref: ThemePreference) -> Self

Choose a palette from a ThemePreference. System falls back to dark.

Trait Implementations

impl Clone for Visuals

fn clone(&self) -> Visuals

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Visuals

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.