You can replace the default thumbnail of an application with another thumbnail, to make it easier to distinguish between applications in the hub. You can use one of the default images, or an image of your own.
Do the following:
- Click the application name to open the application details area.
- Click
> Edit details. -
Click
on the default thumbnail.The Media library opens.
- Select the image you want to use as a thumbnail for the application and click Close.
The image you selected is now used as a thumbnail for the application.
Alternatively, you can change the thumbnail from the application settings. Click in the application navigation bar, and select 
Settings. Change the thumbnail in the menu.
The following formats are supported: .png, .jpg, .jpeg, and .gif.
For Qlik Sense: You can upload images to the In app folder in the media library. You need to use the Qlik Management Console to upload images to the default folder.
For Qlik Sense Desktop: You can place images in the following folder on your computer: C:\Users\<user>\Documents\Qlik\Sense\Content\Default. Images will be available in the default folder in the media library. When moving an application between installations, the images that you use in the application are saved in the qvf file together with the application. When you open the application in a new location, the images will be in the In app folder in the media library for the application.