Console app icon should be like below,
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Final size: 512px x 512px
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Format: 32-bit PNG
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Color space: sRGB
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Max file size: 1024KB
Recent google changes some policy. Now shape need to be Full square
You will get more information from here
And your launcher icon sizes will be,
HDPI:72×72
MDPI:48×48
XHDPI:96×96
XXHDPI:144×144
XXXHDPI:192×192