Upload image to Image Catalog

In PeopleTools 8.53 PeopleSoft has provided an online PIA page to upload the images or modify an existing images without using App designer. This is really helpful if you want to change an image, but do not want to migrate application project just for updating the image.
Page name : Layout Image Upload

Navigation : Main Menu>PeopleTools>Mobile Application Platform>MAP Utilities>Layout Image Upload

For some reason, Mobile Application Platform is hidden in Portal structure and contents, but you can still access the Layout Image Upload page by searching.