This page shows the different variations of the Dwa serca from an Icons8 icon pack. Feel free to resize and recolor the icon, and then download the icon in PNG format for free. Icons are available in PNG and vector.
The two heart symbols are two hearts are right next to each other. A heart shape has a bigger rounded side and the top is curved downwards and all the lines will connect to each other. The two hearts may also be different sides, but they will be shown together.