Idea of Invitation Icon
There is a rectangle. another diagonal line extends from the top left corner to create a three dimensional impression. in the middle of the rectangle is a circle. within the circle, a heart has been drawn.
This Invitation 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 6,200 icons, all in the same style and quality.