This Średni priorytet 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 icon of Medium Priority looks a square turned sideways with the corners, resembling a baseball field. And within the square figure, there are three small dots in a straight line side by side in the middle.