Idea of Rhombus Icon
The rhombus is the typical shape of most modern baseball fields. It is a square, an object with four lines and four points connected together, but laying on a point instead of one of it's sides.
This Rhombus 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 6,100 icons, all in the same style and quality.