How to make exe builder in c++ cpp?

Question

C++ / C#

Greetings.
As there is a task to make an exe builder on the pluses, the only question is how to implement it?

Task:
Create an application in which there will be different items that allow you to configure the output executable.
That is, the "Dark theme" checkbox, and when you click this checkbox and click the build button, an exe file will be generated with the interface I need and a dark background.
Otherwise (if the checkbox is not activated):
The same file will be generated, but with a white background

Answer 1

Write the necessary parameters to the resources of the created executable.
Naturally, the executable created by your application should then read and correctly interpret these resources