id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
12932	Support for plugin icons to be retina / better addButton documentation	Chris Graham		"The api-doc for addButton is very vague, and incomplete.
'icon' is not mentioned for example.

About 2 years ago I made my first CKEditor plugin and worked it out via a comment on the forum. Coming back to it now I see that the code is buried deep away from the addButton definition, in plugins/button/plugin.js -- so, very hard to find.
I think all reasonably useful options should get documented for addButton.

Now, the reason I was looking at all this...

We need to support Retina. So I think we need something like an 'icon_2x' property, which does not currently exist. My understanding is that the inbuilt plugins draw from a precompiled master sprite somehow, which exists in both retina and non-retina versions.

If I am missing something, please let me know. Perhaps for example somehow retina support is compiled in at build-time only and for sprites only, with it auto-searching the filesystem when building the sprites. I don't know, because I think it's not documented ;-).

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We are missing document explaining how to support Retina. Please see comment:2 for more details.
"	Bug	closed	Normal		Documentation & Samples		invalid