This Łuk łucznika icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 4,300 icons, all in the same style and quality.
The logo is a bow from a bow and arrow set. The long straight end of the bow extends from the bottom left to the top right, and the curved end of the bow runs below it, curving out and then back towards the bow string in the center.