Background

I have a personal project that is an elixir desktop application for PC Windows. It works pretty well, but now I want to give it an icon.

This is usually done in the following module:

defmodule WebInterface.Application do
  # See https://hexdocs.pm/elixir/Application.html
  # for more information on OTP Applications
  @moduledoc false

  use Application

  alias Desktop
  alias Manager
  alias WebInterface.{Endpoint, Telemetry}
  alias WebInterface.Live.MenuBar

  @impl true
  def start(_type, _args) do
    children = [
      Telemetry,
      {Phoenix.PubSub, name: WebInterface.PubSub},
      Endpoint,
      Manager,
      {Desktop.Window,
       [
         app: :web_interface,
         id: WebInterface,
         title: "Market Manager",
         size: {900, 960},
         menubar: MenuBar,
         icon: "static/images/resized_logo_4.png", # THIS IS WHERE THE ICON IS SET
         url: &WebInterface.Endpoint.url/0
       ]}
    ]

    opts = [strategy: :one_for_one, name: WebInterface.Supervisor]
    Supervisor.start_link(children, opts)
  end

  @impl true
  def config_change(changed, _new, removed) do
    WebInterface.Endpoint.config_change(changed, removed)
    :ok
  end
end

Problem

The issue here is that I have to use the same image for both the Windows taskbar and the top icon of the app:

Capture.PNG727×998 61.1 KB

The issue here is that while the logo on the bottom Windows bar (marked yellow) is nice, the one in the top is distorted and pretty horrible.

The fix to this would be to have an icon for the bottom and one for the top.
However after checking the demo app I didn’t find a way of doing this.

Question

Is this possible to achieve? If so, how?