dockerfile.run

sng

a specialized markup language for representing PNG contents

Debian

RUN apt-get update && \
    apt-get install -y sng

Ubuntu

RUN apt-get update && \
    apt-get install -y sng

Kali Linux

RUN apt-get update && \
    apt-get install -y sng

Fedora

RUN dnf install -y sng

Raspbian

RUN apt-get update && \
    apt-get install -y sng

click the source code to copy install sng on any operating system with command-not-found.com