Enumeration: render style

A way to render a choice [[type:field]], see [[type:style]].

--Possible values--
! Value			Sketch		Description
| @text@		<img src="choice-render-style-text.png" alt=""/>
		 	Rendered as text
| @image@		<img src="choice-render-style-image.png" alt=""/>
		 	Rendered as an image
| @both@		<img src="choice-render-style-both.png" alt=""/>
		 	Both an image and text
| @hidden@		<img src="choice-render-style-hidden.png" alt=""/>
		 	The box is hidden, but the value can still be edited.
| @image hidden@	<img src="choice-render-style-hidden.png" alt=""/>
		 	The box is hidden, but the value can still be edited.
| @checklist@		<img src="choice-render-style-checklist-text.png" alt=""/>
		 	A list of checkboxes, for multiple choice styles.
| @image checklist@	<img src="choice-render-style-checklist-image.png" alt=""/>
		 	A list of checkboxes with images instead of text.
| @both checklist@	<img src="choice-render-style-checklist-both.png" alt=""/>
		 	A list of checkboxes with both images and text.
| @text list@		<img src="choice-render-style-list-text.png" alt=""/>
		 	A list of the selected items, for multiple choice styles.
| @image list@		<img src="choice-render-style-list-image.png" alt=""/>
		 	A list of the selected items with images instead of text.
| @both list@		<img src="choice-render-style-list-both.png" alt=""/>
		 	A list of the selected items with both images and text.

--Examples--
> render style: image
