\begin
Discover why 18 million people worldwide trust Overleaf with their work.
\documentclass[14pt,compress,usenames,dvipsnames,aspectratio=169]{beamer}
%\usetheme{Singapore}
\useoutertheme{shadow}
\usetheme{CambridgeUS}
\definecolor{mygreen}{RGB}{150, 255, 210}%186}
\definecolor{leftblue}{RGB}{230,255,255}
\definecolor{rightblue}{RGB}{111,195,223}
\definecolor{lefttron}{RGB}{19,44,65}
\definecolor{myblack}{RGB}{27,27,27}
\definecolor{mypurple}{RGB}{205,87,255}
\usecolortheme{owl}
% \setbeamercolor{section in head/foot}{fg = white,bg=black}
\setbeamercolor{title}{fg=mygreen,bg=black}
\setbeamercolor{titlelike}{fg=yellow,bg=black}
\setbeamercolor{item}{fg=mygreen}
\setbeamercolor{block title}{fg=white,bg=myblack!200}
\setbeamercolor{block body}{bg=normal text.bg!80}
\setbeamertemplate{blocks}[rounded][shadow=true]
\setbeamertemplate{headline}{}
\setbeamertemplate{footline}[frame number]
\setbeamercolor{normal text}{fg=white,bg=myblack}%!89.9}
%Gradient
\setbeamercolor{frametitle}{fg=orange,bg=black}
\setbeamercolor{frametitle right}{fg=white,bg=gray}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{shadowtext}
\usepackage{multicol}
\usepackage[makeroom]{cancel}
%\graphicspath{{./figures/},
%}
%\AtBeginSection{\frame{\sectionpage}}
\usepackage{natbib}
\usepackage{float}
\usepackage{subcaption}
\usepackage{xcolor}
\usepackage{natbib}
\usepackage{bibentry}
\usepackage{animate}
\usepackage{varwidth}
\usepackage{appendixnumberbeamer}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows}
\title{\textbf{Talk Title}}
\author{Fname Lname}
\institute[]{%
Institute Name
}
\date{}
\usefonttheme{professionalfonts}
\usepackage{mydefs}
\setbeamercovered{transparent}
\setbeamertemplate{navigation symbols}{}
\titlegraphic{
\begin{center}
\vspace*{-30pt}
\includegraphics[height=0.15\tH]{figures/uni_logo.png}
\vspace*{10pt}
\includegraphics[height=0.03\tH]{figures/mail_logo.png}\hspace*{2pt}
{\scriptsize \href{mailto:abarik@jhu.edu}{email@example.com}}\hspace*{20pt}
\includegraphics[height=0.03\tH]{figures/twit.png}\hspace*{2pt}
{\scriptsize \href{https://twitter.com/MHDwizard}{@TwitterHandle}}
\end{center}
}
%\institute[JHU]{Planetary Interiors}
\begin{document}
\setbeamercovered{invisible}
\begin{frame}[plain]
\titlepage
\end{frame}
\begin{frame}{Frame Title}
\end{frame}
\begin{frame}{References}
\bibliographystyle{apalike}
\bibliography{bib}
\end{frame}
\end{document}