You do not need to create every single size version of your icon manually. The most efficient workflow is to design your icon at a large scale (such as a 1024x1024 vector file) and use automation tools to downscale it.
: To be eligible for installation as a PWA, a web manifest must include at least one icon of size 192x192 or 512x512. Android Compatibility
By ensuring your asset pipeline correctly generates and links your icon-192x192.png , you guarantee your web application displays clean, professional, and compliant branding across millions of mobile devices worldwide.
The standard manifest.json block maps the icon source, types, and strict resolution boundaries: Use code with caution.