我想在标题页上插入徽标，但如您在左上角看到的，它只是一个黑色矩形。请帮我找到问题所在。
\documentclass[12pt,demo]{article}
\usepackage{geometry}
\usepackage{amsmath,amsfonts,amssymb,amsthm}
\usepackage{xcolor}
\usepackage{braket}
\usepackage{bbold}
\usepackage{graphicx}
\usepackage[utf8]{inputenc}
\definecolor{titlepagecolor}{cmyk}{1,.60,0,.40}
\definecolor{namecolor}{cmyk}{1,.50,0,.10}
\newtheorem*{theorem}{Theorem}
\newcommand{\NN}{\mathbb{N}}
\newcommand{\ZZ}{\mathbb{Z}}
\newcommand{\RR}{\mathbb{R}}
\newcommand{\QQ}{\mathbb{Q}}
\newcommand{\CC}{\mathbb{C}}
\newcommand{\bd}{\textbf}
\begin{document}
\begin{titlepage}
\newgeometry{left=2.5cm}
\pagecolor{titlepagecolor}
\noindent
\includegraphics{äpplet.png}
\color{white}
\makebox[0pt][l]{\rule{1.3\textwidth}{1pt}}
\par
\noindent
\textbf{\textsc{Muhammad Ahmedov}} \textcolor{gray}{\textsf{NA17}}
\vfill
\noindent
{\huge \textsc{Astronomi - instuderingsuppgifter}}
{\large \textsc{Naturvetenskaps specialisering}}
\vskip\baselineskip
\textsf{APRIL 25, 2020}
\end{titlepage}
\restoregeometry
\nopagecolor
