beamer
How to make the title color in the beamer cambrigeus theme as red. Here is the MWE:
\documentclass[12pt]{beamer}
\usetheme{CambridgeUS}
\usecolortheme{beaver}
\title[Semantic Web ranking]{Ranking of Web Documents using Semantic Similarity}
\author{Subham Soni}
\date{19.8.2014}
\begin{document}
\maketitle
\end{document}
For those themes using the infolines outer theme, such as CambridgeUS, you can add the following lines to the preamble:
\setbeamertemplate{headline}
{
\leavevmode%
\hbox{%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,right]{section in head/foot}%
\usebeamerfont{section in head/foot}\thesection\ \insertsectionhead\hspace*{2ex}
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,left]{subsection in head/foot}%
\usebeamerfont{subsection in head/foot}\hspace*{2ex}\insertsubsectionhead
\end{beamercolorbox}}%
\vskip0pt%
}
EDIT: In the following example I defined a \Switch command that allows to turn on/off the numbering of the sections in the headline; initially, it is set to 0 (turn off numbering), but redefining it to be 1 will turn on the numbering; the command can be redefined as many times as required:
\documentclass{beamer}
\usepackage{ifthen}
\usetheme{CambridgeUS}
\newcommand\Switch{0}
\newcommand\SecInHead{%
\ifthenelse{\equal{\Switch}{1}}
{\thesection.}{}}
\setbeamertemplate{headline}
{
\leavevmode%
\hbox{%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,right]{section in head/foot}%
\usebeamerfont{section in head/foot}\SecInHead\insertsectionhead\hspace*{2ex}
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,left]{subsection in head/foot}%
\usebeamerfont{subsection in head/foot}\hspace*{2ex}\insertsubsectionhead
\end{beamercolorbox}}%
\vskip0pt%
}
\begin{document}
\begin{frame}
Test frame with un-numbered section
\end{frame}
\renewcommand\Switch{1}
\section{Section a}
\begin{frame}
Test frame with numbered section
\end{frame}
\renewcommand\Switch{0}
\begin{frame}
Test frame with un-numbered section
\end{frame}
\end{document}
The CambridgeUS theme uses the outer theme infolines. You can download the original file from CTAN and use it as a basis to make your own outer theme with an external link.
In this example the footer contains a fourth field with a link to the beamer user guide:
\mode<presentation>
\setbeamercolor*{author in head/foot}{parent=palette tertiary}
\setbeamercolor*{title in head/foot}{parent=palette secondary}
\setbeamercolor*{date in head/foot}{parent=palette primary}
\setbeamercolor*{section in head/foot}{parent=palette tertiary}
\setbeamercolor*{subsection in head/foot}{parent=palette primary}
% colors for the external link field
\setbeamercolor*{external link}{parent=palette secondary}
\defbeamertemplate*{footline}{withlink theme}
{
\leavevmode%
\hbox{%
\begin{beamercolorbox}[wd=.25\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}%
\usebeamerfont{author in head/foot}\insertshortauthor\expandafter\beamer@ifempty\expandafter{\beamer@shortinstitute}{}{~~(\insertshortinstitute)}
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.25\paperwidth,ht=2.25ex,dp=1ex,center]{title in head/foot}%
\usebeamerfont{title in head/foot}\insertshorttitle
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.25\paperwidth,ht=2.25ex,dp=1ex,center]{date in head/foot}%
\usebeamerfont{date in head/foot}\insertshortdate{}\hspace*{2em}
\insertframenumber{} / \inserttotalframenumber
\end{beamercolorbox}%
% this is a new field with an external link
\begin{beamercolorbox}[wd=.25\paperwidth,ht=2.25ex,dp=1ex,right]{external link}%
\usebeamerfont{author in head/foot}\href{http://mirror.ctan.org/macros/latex/contrib/beamer/doc/beameruserguide.pdf}{Link to manual}\hspace*{2ex}
\end{beamercolorbox}}%
\vskip0pt%
}
\defbeamertemplate*{headline}{withlink theme}
{
\leavevmode%
\hbox{%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,right]{section in head/foot}%
\usebeamerfont{section in head/foot}\insertsectionhead\hspace*{2ex}
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,left]{subsection in head/foot}%
\usebeamerfont{subsection in head/foot}\hspace*{2ex}\insertsubsectionhead
\end{beamercolorbox}}%
\vskip0pt%
}
\setbeamersize{text margin left=1em,text margin right=1em}
\mode
<all>
Save this as beamerouterthemewithlink.sty and put it in your project folder or the local tex-mf tree. Then you can use it by adding this line in your tex file:
\useoutertheme{withlink}
Similarly, you could also modify the header by adding another beamercolorbox. Just make sure that the total width of all beamercolorboxes is equal to \textwidth.
Best Answer
You can change the color of the title by
However for me the example produces a red title.