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Smileys
Flat
Emoticons
emoticons, Emoji, feelings
Khaki
512x512
Interface
Resting Elements
sleep, Rest, tired
Healthcare And Medical
Healthy lifestyle
night, Rest, Sleeping
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Oxygen
Face, Emotion, Emoticon
22x22
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Oxygen-Refit
Face, sleep
128x128
Network & communications
Smooth
Face, happy, sleep