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 with_accent(self, accent: Color) -> Self

Return this palette with its primary accent replaced.

pub fn with_accent_color(self, accent: AccentColor) -> Self

Return this palette with one of the built-in accent swatches applied.

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.

impl FromReflect for Visuals

fn from_reflect(reflect: &dyn PartialReflect) -> Option<Self>

Constructs a concrete instance of Self from a reflected value.

fn take_from_reflect( reflect: Box<dyn PartialReflect>, ) -> Result<Self, Box<dyn PartialReflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails.

impl GetTypeRegistration for Visuals

fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.

fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type.

impl PartialReflect for Visuals

fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value.

fn try_apply(&mut self, value: &dyn PartialReflect) -> Result<(), ApplyError>

Tries to apply a reflected value to this value.

fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type.

fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type.

fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type.

fn reflect_owned(self: Box<Self>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type.

fn try_into_reflect( self: Box<Self>, ) -> Result<Box<dyn Reflect>, Box<dyn PartialReflect>>

Attempts to cast this type to a boxed, fully-reflected value.

fn try_as_reflect(&self) -> Option<&dyn Reflect>

Attempts to cast this type to a fully-reflected value.

fn try_as_reflect_mut(&mut self) -> Option<&mut dyn Reflect>

Attempts to cast this type to a mutable, fully-reflected value.

fn into_partial_reflect(self: Box<Self>) -> Box<dyn PartialReflect>

Casts this type to a boxed, reflected value.

fn as_partial_reflect(&self) -> &dyn PartialReflect

Casts this type to a reflected value.

fn as_partial_reflect_mut(&mut self) -> &mut dyn PartialReflect

Casts this type to a mutable, reflected value.

fn reflect_partial_eq(&self, value: &dyn PartialReflect) -> Option<bool>

Returns a “partial equality” comparison result.

fn reflect_clone(&self) -> Result<Box<dyn Reflect>, ReflectCloneError>

Attempts to clone Self using reflection.

fn apply(&mut self, value: &(dyn PartialReflect + 'static))

Applies a reflected value to this value.

fn to_dynamic(&self) -> Box<dyn PartialReflect>

Converts this reflected value into its dynamic representation based on its kind.

fn reflect_clone_and_take<T>(&self) -> Result<T, ReflectCloneError>

where T: 'static, Self: Sized + TypePath,

For a type implementing PartialReflect, combines reflect_clone and take in a useful fashion, automatically constructing an appropriate ReflectCloneError if the downcast fails.

fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type).

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

Debug formatter for the value.

fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type.

impl Reflect for Visuals

fn into_any(self: Box<Self>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.

fn as_any(&self) -> &dyn Any

Returns the value as a &dyn Any.

fn as_any_mut(&mut self) -> &mut dyn Any

Returns the value as a &mut dyn Any.

fn into_reflect(self: Box<Self>) -> Box<dyn Reflect>

Casts this type to a boxed, fully-reflected value.

fn as_reflect(&self) -> &dyn Reflect

Casts this type to a fully-reflected value.

fn as_reflect_mut(&mut self) -> &mut dyn Reflect

Casts this type to a mutable, fully-reflected value.

fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value.

impl Struct for Visuals

fn field(&self, name: &str) -> Option<&dyn PartialReflect>

Returns a reference to the value of the field named name as a &dyn PartialReflect.

fn field_mut(&mut self, name: &str) -> Option<&mut dyn PartialReflect>

Returns a mutable reference to the value of the field named name as a &mut dyn PartialReflect.

fn field_at(&self, index: usize) -> Option<&dyn PartialReflect>

Returns a reference to the value of the field with index index as a &dyn PartialReflect.

fn field_at_mut(&mut self, index: usize) -> Option<&mut dyn PartialReflect>

Returns a mutable reference to the value of the field with index index as a &mut dyn PartialReflect.

fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.

fn field_len(&self) -> usize

Returns the number of fields in the struct.

fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.

fn to_dynamic_struct(&self) -> DynamicStruct

Creates a new DynamicStruct from this struct.

fn get_represented_struct_info(&self) -> Option<&'static StructInfo>

Will return None if TypeInfo is not available.

impl TypePath for Visuals

fn type_path() -> &'static str

Returns the fully qualified path of the underlying type.

fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type.

fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous.

fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous.

fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous.

impl Typed for Visuals

fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.