>Twilight</option>
<option value="ace/theme/tomorrow_night">Tomorrow Night</option>
<option value="ace/theme/tomorrow_night_blue">Tomorrow Night Blue</option>
<option value="ace/theme/tomorrow_night_bright">Tomorrow Night Bright</option>
<option value="ace/theme/tomorrow_night_eighties">Tomorrow Night 80s</option>
<option value="ace/theme/vibrant_ink">Vibrant Ink</option>
</optgroup>
</select> 
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