$prefix/share/icons is generally used by XDG icon themes, and the icons installed there by convertall are not structured as such. Since they are application private data rather than public icons, then install them directly inside the data directory of convertall.
This removes the way to setup a custom path for them: it is not needed anymore, as the loading code already looks for an icons subdirectory of the directory where the Python modules are.
$prefix/share/iconsis generally used by XDG icon themes, and the icons installed there by convertall are not structured as such. Since they are application private data rather than public icons, then install them directly inside the data directory of convertall.This removes the way to setup a custom path for them: it is not needed anymore, as the loading code already looks for an
iconssubdirectory of the directory where the Python modules are.