This is the Zrównoważenie Portfolio icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
It is a pie chart divided into three section. The top left quarter is its own section, then the rest of the chart is divided in half by a diagonal line going from the center of the circle to the bottom right. There is a smaller slice of the chart superimposed over the chart in the upper right.