How to categorize my picture:

First, get into the image gallery. Next, type in category name and click add icon.

Here is how to categorize my picture:

Step 1: Click edit icon of image widget. 

Step 2: Click Search icon. 

Step 3: Type in category name. (yellow

Step 4: Click add icon (yellow). 

Step 5: Drag and drop images into the new folder. (orange)

Step 6: Click the folder to access its content (orange).

Congratulations! You can add as many folders as you like to better save and retrieve images based on set categories.