When I'm using background package to do some decorating, however found out the outcome wasn't as I expected. Here's what I use:
\documentclass{article}
\usepackage[left=1in,right=1in,top=1in,bottom=1in]{geometry}
\usepackage{background}
\usepackage{color}
\definecolor{Black}{RGB}{0,0,0}
\begin{document}
\backgroundsetup{pages=some,contents={- \thepage \ -},placement=center,opacity=0.5,scale=2,angle=0,color=Black}
some text
\newpage
some text
\end{document}
When I used overleaf to compile, the first "- 1 -" background is totally opaque. For the second one ("- 2 -"), it's 50% opaque as I set. You can use overleaf to run it if my expression is kind of confusing.
I'm really curious about why these strange things are occurring?
%I've defined "Black" previously, not shown here
why post an example no one can run? Please post an example of the problem so people can debug it for you.