message: Add tikzpicture environment snippet
diff: "body": "\\begin{figure}[${1:htbp}]\n\t\\centering\n\t$0\n\t\\caption{${2:<caption>}}\n\t\\label{${3:<label>}}\n\\end{figure}",
  "description": "Insert a new figure"
  },
  + "tikzpicture": {
  + "prefix": "BTP",
  + "body": "\\begin{tikzpicture}\n\t$0\n\\end{tikzpicture}",
  + "description": "Insert a new figure"
  + },
  "set font size": {
  "prefix": "fontsize",
  "body": "${1|\\Huge,\\huge,\\LARGE,\\Large,\\large,\\normalsize,\\small,\\footnotesize,\\scriptsize,\\tiny|}",
  