Multiple Styles in Text

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Figma allows designers to apply multiple text style variations within a single text element. For example, the word “Brown” in the packaged Figma component below is a single text element that includes a variety of styles, including different text sizes within a single word.

Mixed text styles in a single text element

Relay supports design-to-code translation of multiple text styles applied to substrings within a Figma text layer. In the generated source code, Compose’s AnnotatedString and SpanStyle are used to represent multiple styles in text layers.

The supported styles are:

  • typeface
  • text size
  • font weight
  • color
  • letter spacing
  • italic
  • strike through
  • underline

In the generated Compose code, Relay’s RelayText composable can accept either String or AnnotatedString. Relay generates Kotlin code that uses the AnnotatedString.Builder and SpanStyle classes to render multiple styles in text. The code fragment below shows wide letter spacing being applied to the word “jumps”, followed by a space with no custom style, followed by the word “over” in bold italic.

RelayText(
   content = buildAnnotatedString {
       append("The ")
       ...
       withStyle(
           style = SpanStyle(
               letterSpacing = 8.64.sp,
           )
       ) { // AnnotatedString.Builder
           append("jumps")
       }
       append(" ")
       withStyle(
           style = SpanStyle(
               fontFamily = inter,
               fontSize = 32.0.sp,
               fontWeight = FontWeight(700.0.toInt()),
               fontStyle = FontStyle.Italic,
           )
       ) { // AnnotatedString.Builder
           append("over")
       }
       ...
   },
   ...
)

Limitations