After add... how can I used it !!
is it automatically changed size?
or I must scale it?
& what The perfect native image size before I make it multi images...by
example "background image"
This is intended mostly for icons etc. which need to change between resolutions but don't scale. Its not very good or efficient for backgrounds and other large images.
You need to pick all the supported resolutions or use one of the wizards, the best image size is picked implicitly.
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