[wp-trac] [WordPress Trac] #21456: Replace animated spinner gifs

[WordPress Trac]

#21456: Replace animated spinner gifs
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 Reporter:  nacin           |       Owner:  lessbloat
     Type:  task (blessed)  |      Status:  assigned
 Priority:  normal          |   Milestone:  3.5
Component:  UI              |     Version:
 Severity:  normal          |  Resolution:
 Keywords:  has-patch       |
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Comment (by lessbloat):

 I tested hidpi-spinner.diff.  Two things:

 - For whatever reason, when using CSS animation with the transparent PNG,
 the icon is somewhat lopsided, and it suffers from intermittent delays
 (tested in FF 14.0.1).  I played with the PNG trying to get it to not look
 lopsided, without any luck.
 - Additionally, I tested CPU on the dashboard without the spinner showing
 (11%-12%) CPU, and then I dropped the slider code in via the console, and
 the CPU jumped to (38%-40%) which still seems really high to me for a
 small spinner.

 For these reasons, my proposal would be to stick with 21456.diff, which
 isn't perfect, but overall seems to offer a better solution than using CSS
 animation with the PNG (at this point).

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Ticket URL: <http://core.trac.wordpress.org/ticket/21456#comment:16>
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