Idea of Create Document Filled Icon
It's a icon for you to Add a rule which is a picie of paper with a plus mark. If you need to add a rule this is the button/icon you would go to.
This is a Create Document Filled 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.