Struct Palette 

pub struct Palette {
    pub paper: Color32,
    pub ink: Color32,
    pub link: Color32,
}

The colours a document is drawn in where the document itself does not say.

The document’s own colours are always the document’s: a colour the author set is drawn as set, whatever the window’s theme. Where a document sets none, Palette::for_theme follows the window instead of staying fixed — paper and ink move together, the way a page and its own unset text would if it were reprinted for the window it is read in, so a document that never colours itself is legible in both. The chrome around the page — menus, panels, the grid’s headers — already follows the desktop by the same principle, one level up.

This does not reach a document that colours its own text but leaves the page unset: that colour is drawn as set, on paper that now follows the window, and an author’s own dark heading can still land on dark paper. That is the narrower case the old, page-only version of this rule was written against; recolouring an author’s own choice for contrast is a larger step than this file takes.

link is the one colour that does not follow this rule: link_format draws every hyperlink in it regardless of what the document says, because almost every ODF producer writes a resolved colour into a hyperlink’s character style whether an author touched it or not — “the document set a colour” is barely ever true of a link’s blue in the way it is of a heading’s, so treating it as an author’s choice would mean this file’s dark mode never reaching almost any real hyperlink.

Fields

paper: Color32

What the page itself is.

ink: Color32

The colour of text the document does not colour.

link: Color32

The colour every hyperlink is drawn in, whatever the document says.

Implementations

impl Palette

pub fn for_theme(dark_mode: bool) -> Self

The palette for a window in, or not in, dark mode.

All three move together, because they are the unset document’s own page and the unset document’s own text, and a page redrawn dark with text left black would be unreadable rather than themed. The dark ink is an off-white rather than pure white, and the dark link a lighter, more saturated blue than the light palette’s — both chosen to meet WCAG AA contrast against the dark paper (measured: ink 11.2:1, link 5.4:1; AA needs 4.5:1) rather than merely looking legible in one shot.

Trait Implementations

impl Clone for Palette

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Palette

impl Debug for Palette

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

Formats the value using the given formatter.

impl Default for Palette

fn default() -> Self

Returns the “default value” for a type.