softness
hardness
https://source.unsplash.com/featured/?softness#.png
/suto3/google.iconsoftness
/suto3/Google画像検索.iconsoftness
/suto3/Google定義検索.icon softness
/suto3/wikipedia.iconsoftness
/suto3/weblio.icon softness
/suto3/kotobank.icon softness
/suto3/jisho.icon softness