documentclass{beamer}

definecolor{dark}{rgb}{0.05, 0.3, 0.5}
definecolor{light}{rgb}{0.1, 0.5, 0.7}

% Imports
usepackage[T1]{fontenc}
usepackage[utf8]{inputenc}
usepackage{lmodern}

usepackage[margin=1in]{geometry}
usepackage{pythontex}
usepackage[svgnames]{xcolor}

renewcommand*{thefootnote}{fnsymbol{footnote}}

% Theme definitions
DeclareOptionBeamer{compress}{beamer@compresstrue}
ProcessOptionsBeamer

mode<presentation>

useoutertheme[footline=title]{miniframes}
useinnertheme{circles}

setbeamertemplate{blocks}[rounded][shadow=true]

% Colors
setbeamercolor{palette primary}{bg=dark, fg=black}
setbeamercolor{palette secondary}{bg=light, fg=black}
setbeamercolor{palette tertiary}{bg=dark, fg=white}
setbeamercolor{palette quaternary}{bg=dark, fg=light}

setbeamercolor{structure}{fg=black}

setbeamercolor{titlelike}{parent=structure}
setbeamercolor{title}{bg=light}

setbeamercolor{item}{fg=light}
setbeamercolor{itemize item}{fg=black}
setbeamercolor{itemize subitem}{fg=black}

setbeamercolor{institute in head/foot}{fg=white}

% Title page
defbeamertemplate*{title page}{customized}[1][]
{
begin{center}
    usebeamercolor[fg]{titlegraphic}inserttitlegraphicpar
    usebeamercolor[bg]{palette primary}www.url.compar
    vspace{0.15paperheight}
    usebeamerfont{title}inserttitlepar
    vspace{0.6paperheight}
    usebeamerfont{subtitle}usebeamercolor[fg]{subtitle}insertsubtitle
end{center}
}

mode
<all>

title{Title}
titlegraphic{Title Graphic}
logo{Logo}
date{}

% Begin document
begin{document}

% Title page and contents
frame[plain]{titlepage}
frame[plain]{frametitle{Contents}tableofcontents}

% Sections
section{Intro}
frame{
frametitle{insertsectionhead}

}

section{Second}

frame{
frametitle{insertsectionhead}

}

end{document}