Create Windows icon file from a list of PNG images.
Images are be stored in the PNG format inside the ico file.
Open png2ico folder in Visual Studio
Install MSYS2 and follow instructions on MSYS2 site to install the mingw-gcc toolchain
Open MSYS2 console and install cmake
pacman -S cmake
Compile:
cd png2ico
mkdir build
cd build
cmake ..
mingw32-make
png2ico ico_file.ico png_file_01.png [png_file_02.png ...]