 icon type with or without button. valid types: 'micro','mini','midi','icon', 'btn-micro', 'btn-mini', 'btn-midi' (optional, default = 'icon')
* @param {text=} text to show inside button if button type selcted (optional)
*
* @see design/design_icons#Icons
*
* @author Martin Gleiß and Stefan Widmer
*/
{% macro symbol(id, items, text, icon, value, formula, color, href, rel, type, btntxt) %}
	{% import _self as basic %}
	{% if type not in ['micro','mini','midi', 'btn-micro', 'btn-mini', 'btn-midi'] %}{% set t