tikz.dev / TikZpingus Manual
PGF/TikZ
PGFplots
chemfig
forest
nicematrix
pgf-pie
pgfgantt
tcolorbox
tikz-cd
TikZ-Feynman
TikZpingus
tkz-euclide
wheelchart
Beamer
CircuiTikZ

The TikZpingus package

Penguin keys

A.1 Penguin Keys
A.1.1 Anchors and Placement
A.1.2 The Feet
A.1.3 The Body
A.1.4 The Size
A.1.5 The Eyes
A.1.6 The Wings
A.1.7 The Hair
A.1.8 The Bill