Idea of Skeleton Icon
It is a very simplified skeleton. There is a centered vertical line (spine) with 4 equally-spaced horizontal lines intersecting it (horizontally centered on the vertical line), varying in width, indicating ribs. The vertical line meets a pelvis-shaped object at the bottom, which has 2 small holes/sockets.
This is a Skeleton icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,900 icons, all in the same style and quality.