Sends Type Column Symbol Definitions in Email Insights Sends Report

Issue

Issue Description
Email Insights Sends page has a column in the list of assets for the Type of asset, but does not define the icon used. 
 

Solution

Issue Resolution
The Type column in the Sends page in Email Insight is for Batch sends and Triggered sends. Batch email sends are represented by stacks of rectangles, and a Triggered email send is a lightning bolt.