To make your app installable, you must define the icon in your manifest.json file. This tells the browser exactly which file to use for different UI contexts.
The file icon-192x192.png is a standard asset found in countless modern websites and web applications. Its name explicitly describes its primary characteristics: it is a image with dimensions of 192 by 192 pixels . This specific size has become a de facto standard for icons, primarily due to its adoption by major mobile operating systems and browser vendors for progressive web apps (PWAs) and home screen shortcuts. icon-192x192.png
A complete icon set for a modern PWA typically includes: To make your app installable, you must define
"src": "icon-192x192.png", "sizes": "192x192", "type": "image/png", "purpose": "any maskable" Dimensions : Exactly 192 x 192 pixels
: It must be a PNG to ensure high quality and support for transparency. Dimensions : Exactly 192 x 192 pixels .
Visual assessment