--- a/graphics.sty	Fri Apr 26 17:29:30 2024 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,21 +0,0 @@
-\usepackage{tikz}
-\usepackage{pgf}
-\usetikzlibrary{positioning}
-\usetikzlibrary{calc}
-\usetikzlibrary{automata}
-\usetikzlibrary{arrows}
-\usetikzlibrary{backgrounds}
-\usetikzlibrary{fit}
-\usepackage{tikz-qtree}
-\usepackage{graphicx} 
-\usepackage{pgfplots}
-
-\pgfplotsset{compat=1.11}
-
-\newenvironment{bubble}[1][]{%
-\addtolength{\leftmargini}{4mm}%
-\begin{tikzpicture}[baseline=(current bounding box.north)]%
-\draw (0,0) node[inner sep=2mm,fill=cream,ultra thick,draw=red,rounded corners=2mm]% 
-\bgroup\begin{minipage}{#1}\raggedright{}}
-{\end{minipage}\egroup;%
-\end{tikzpicture}\bigskip}