Where i can i change the icons on the side menu at Sarahmarket theme 3 or Maxmin #1 Theme

Question: Need change these icons below

Solution: you must:

1. Create the icon that you want. Recommended size is 25x25 pixel 
   


2. Set the name of this icon is "name image" = "name collection" and image .png format.
   Example: want make the icon for "Sports & Outdoors" , you must set the name of this collection is "sports-outdoors.png" , replace spacing space ' ' and special text by '-'
   
   


3. Upload this icon into Assets folder