// Add a path to the cairo context encompassing the current text settings.
    pango_cairo_layout_path(cr.get(), &layout);

    // Set color for background outline.
    cairo_set_source_rgba(cr.get(), 0.0, 0.0, 0.0, 1.0);

    cairo_set_line_join(cr.get(), CAIRO_LINE_JOIN_ROUND);
    cairo_set_line_width(cr.get(), 2.0); // Adjust as necessary

    // Stroke path to draw outline, but don't delete it.
    cairo_stroke_preserve(cr.get());

    // Set main text color.
    cairo_set_source_rgba(cr.get(),
        foreground_color_.r / 255.0,
        foreground_color_.g / 255.0,
        foreground_color_.b / 255.0,
        foreground_color_.a / 255.0
    );

    // Draw main text.
    cairo_fill(cr.get());