Saiko6540/smilk-launcher ? reverse-engineered prompt

Build me a polished Windows desktop Minecraft launcher that feels premium and easy to use. I want a dark glassy interface with animated pixel art scenes that change based on the modpack you pick, like a sea theme, a tech theme, a monster catching theme, and a vanilla fantasy theme. Let people enter their nickname, show their Minecraft face automatically, and fall back nicely for offline names.

It should launch Minecraft for versions around 1.20.1 and 1.21.1, support downloading and installing Modrinth mrpack modpacks from remote configs, and include practical settings like memory allocation and game options. Please add a built in updater, a debug console that streams game logs, and a smooth startup flow that clears launcher cache and pauses background animations while the game is running so performance stays focused on Minecraft.

If Java is missing, handle that gracefully with a helpful fallback. Make it runnable locally and also buildable into a Windows installer. Look up current docs online if you need to.