DiffStyles.fromColors constructor

DiffStyles.fromColors({ required Color success, required Color error, required Color muted, required Color surface, required Color onSurface, required Color onBackground, required Color border, Color? successBg, Color? errorBg, Color? inlineAddedBg, Color? inlineRemovedBg, })

Creates diff styles from semantic colors.

Maps semantic color slots (success/error/muted/surface/onSurface/border) to the appropriate diff styles. This enables theme-driven styling without coupling to a specific theme class.

• success — color for added lines (foreground).
• error — color for removed lines (foreground).
• muted — color for line numbers, context gutter, separators.
• surface — background for panels (used for empty cells in side-by-side mode).
• onSurface — text color on surface backgrounds (file headers).
• onBackground — text color on main background (context lines).
• border — border/separator color.
• successBg — subtle background for added lines (optional).
• errorBg — subtle background for removed lines (optional).

Implementation

factory DiffStyles.fromColors({
  required Color success,
  required Color error,
  required Color muted,
  required Color surface,
  required Color onSurface,
  required Color onBackground,
  required Color border,
  Color? successBg,
  Color? errorBg,
  Color? inlineAddedBg,
  Color? inlineRemovedBg,
}) {
  final addedBg = successBg ?? const BasicColor('#1a2e1a');
  final removedBg = errorBg ?? const BasicColor('#2e1a1a');

  return DiffStyles(
    // Unified mode
    addedLine: Style().foreground(success),
    removedLine: Style().foreground(error),
    contextLine: Style().foreground(onBackground),
    fileHeader: Style().bold().foreground(onSurface),
    hunkHeader: Style().foreground(muted),
    addedGutter: Style().foreground(success).bold(),
    removedGutter: Style().foreground(error).bold(),
    contextGutter: Style().foreground(muted),
    lineNumber: Style().foreground(muted),
    // Pretty mode
    prettyAddedLine: Style().foreground(success).background(addedBg),
    prettyRemovedLine: Style().foreground(error).background(removedBg),
    prettyContextLine: Style().foreground(onBackground),
    prettyFileHeader: Style().foreground(muted),
    prettyAddedLineNumber: Style().foreground(success).background(addedBg),
    prettyRemovedLineNumber: Style().foreground(error).background(removedBg),
    prettyContextLineNumber: Style().foreground(muted),
    // Side-by-side mode
    sideBySideSeparator: Style().foreground(border),
    sideBySideAddedLine: Style().foreground(success).background(addedBg),
    sideBySideRemovedLine: Style().foreground(error).background(removedBg),
    sideBySideContextLine: Style().foreground(onBackground),
    sideBySideLineNumber: Style().foreground(muted),
    sideBySideEmptyCell: Style().foreground(surface),
    sideBySideAddedMarker: Style().foreground(success),
    sideBySideRemovedMarker: Style().foreground(error),
    sideBySideContextMarker: Style().foreground(muted),
    // Inline diff highlighting
    inlineAddedHighlight: Style().background(
      inlineAddedBg ?? const BasicColor('#2a4a2a'),
    ),
    inlineRemovedHighlight: Style().background(
      inlineRemovedBg ?? const BasicColor('#4a2a2a'),
    ),
  );
}