GitHub

\documentclass[border=4pt]{standalone}

% --- packages (mirror these in github.meta.json "requires") ---
\usepackage{tikz}
\usetikzlibrary{svg.path}

% --- brand color (GitHub's official brand color; brand marks keep their
%     official color instead of the shared OpenTikZ palette by design) ---
\definecolor{brandgithub}{HTML}{181717}

% GitHub logo. Shape data derived from the CC0 simple-icons project
% (https://simple-icons.org), flattened to absolute M/L/C/Z commands with the
% y-axis pre-flipped for TikZ and scaled to ~2.5cm (svg.path ignores TikZ
% coordinate transforms, so the transform is baked into the coordinates).
% The GitHub logo is a trademark of its owner; used here for identification.
\begin{document}
\begin{tikzpicture}
  \fill[brandgithub] svg {%
    M 36 71.109 C 16.11 71.109 0 54.99 0 35.109 C 0 19.2 10.314 5.709 24.615 0.954 C
    26.415 0.615 27.075 1.728 27.075 2.685 C 27.075 3.54 27.045 5.805 27.03 8.805 C
    17.016 6.633 14.904 13.635 14.904 13.635 C 13.266 17.79 10.899 18.9 10.899 18.9 C
    7.638 21.132 11.151 21.087 11.151 21.087 C 14.766 20.835 16.665 17.379 16.665 17.379
    C 19.875 11.874 25.092 13.464 27.15 14.385 C 27.474 16.713 28.401 18.3 29.43 19.2 C
    21.435 20.1 13.032 23.196 13.032 36.99 C 13.032 40.92 14.427 44.13 16.737 46.65 C
    16.332 47.559 15.117 51.219 17.052 56.178 C 17.052 56.178 20.067 57.144 26.952
    52.488 C 29.832 53.289 32.892 53.685 35.952 53.703 C 39.012 53.685 42.072 53.289
    44.952 52.488 C 51.792 57.144 54.807 56.178 54.807 56.178 C 56.742 51.219 55.527
    47.559 55.167 46.65 C 57.462 44.13 58.857 40.92 58.857 36.99 C 58.857 23.16 50.442
    20.115 42.432 19.23 C 43.692 18.15 44.862 15.942 44.862 12.57 C 44.862 7.752 44.817
    3.882 44.817 2.712 C 44.817 1.767 45.447 0.642 47.292 1.002 C 61.695 5.724 72 19.224
    72 35.109 C 72 54.99 55.881 71.109 36 71.109%
  };
\end{tikzpicture}
\end{document}