I'm using Generic icon generator tool to resize my image which i want to use as background for a linerlayout container in my android app.
the issue is i can't really understand the meaning of optical icon size parameter. and whether i should modify it's default value. my image is 594 X 583 px
i have googled for the meaning but have found none.
EDIT Guys, is there anyone wiser than me to explain the meaning of the above term?

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