-group">
            <label>Theme:</label>
            <select id="themeSelect">
                <option value="solar">Solar (Light)</option>
                <option value="cave">Cave (Dark)</option>
            </select>
        </div>
        <div class="option-group">
            <label>Font Size:</label>
            <select id="fontSizeSelect">
                <option value="12px">Small (12px)</option>
                <option value="14px" selected>Medium (14px)</option>
                <option value="16