I asked this question on Godot Q & A:
https://godotengine.org/qa/53521/godot-program-icons
Basically, my problem is that I want My executable file's icon to display my own custom icon instead of the default Godot icon. I learned that Windows executables come in bundles and now know that I should include icons of other sizes instead of just one.
How do I do this?
EDIT
My problem is how I do this in Godot, not having found a means to edit the bundles in Godot.
.ico
files than Godot itself, and I believe it has an answer here: superuser.com/questions/491180/… \$\endgroup\$.ico
file in the Godot export settings for Windows. \$\endgroup\$