feat(style): adding background image

style/header.sty

@@ -6,6 +6,7 @@
 \usepackage{colortbl}
 \usepackage[a4paper, landscape,top=2.5cm, bottom=2.5cm, left=2.5cm, right=2.5cm]{geometry} 
 \usepackage[font=small,labelsep=none]{caption}
+\usepackage{background}
 
 %\definecolor{table-row-color}{HTML}{C2ED77}
 \definecolor{table-row-color}{HTML}{D5FA96}
@@ -22,3 +23,11 @@
 \oldlongtable} {
 \endoldlongtable
 \global\rownum=1\relax}
+
+\backgroundsetup{
+  scale=1,
+  color=white,
+  opacity=1,
+  angle=0,
+  contents={\includegraphics[width=\paperwidth,height=\paperheight]{images/background.png}}
+}