RichTextRun

RichTextRun is the building block for RichText.

A run is one continuous piece of text with one style. If a sentence has a bold product name inside otherwise normal prose, that sentence naturally becomes multiple runs.

Example

use fission::core::ui::{RichText, RichTextRun};

let node = RichText::new(vec![
    RichTextRun::new("Status: "),
    RichTextRun::new("Failed")
        .weight(700)
        .color(view.env.theme.tokens.colors.error),
])
.into_node();

This keeps the style change local to the important word without forcing the entire line to share the same emphasis.

Field table

Field	Type	Meaning	Notes / default behavior
text	String	Text for this run.	Required.
style	TextRunStyle	Fully resolved style for the run.	Defaults to TextRunStyle::default(). Builder helpers usually feel nicer than editing this directly.
semantics_label	Option<String>	Accessibility label override for this run.	Defaults to None.
semantics_identifier	Option<String>	Semantic identifier override for this run.	Defaults to None.
spell_out	Option<bool>	Whether assistive technology should spell out the run.	Defaults to None.

When to use runs and when not to

Use flat runs when you only need straightforward styling differences across one paragraph. If you need nested semantics, hover or tap actions on subranges, or inline widgets inside the text flow, move up to the span-based RichText::from_spans(...) model instead.

Related

RichText, TextRunStyle, Text, and TextFontStyle.