Serpentian

Sure, it doesn't seem difficult to do, looks nice

That's Snusmumrik from the Moomin series)

automated icon theme?

Do you mean smth like this?

Here it is) The original image: link

That's spotfy-player

• Dotfiles: AlfheimOS
• OS: NixOS
• Window manager: Hyprland
• Colorscheme: catppuccin (mocha)
• Shell: zsh, starship prompt
• Terminal: kitty
• Panel: waybar
• Notify daemon: swaync
• Launcher: nwg-drawer, rofi