set color by option

README.md

@@ -28,10 +28,9 @@ The main file is `beamerthemeSimple.sty`. Make sure it is in the same folder as
 ```latex
 \documentclass{beamer}
     \usepackage[english]{babel}
-    \usetheme{Simple}
     
     % customize your own color and navigation
-    \definecolor{main}{RGB}{12 72 66} % overall color
+    \usetheme[RGB={12 72 66}]{Simple} % color
     \useoutertheme{tree}              % navigation
     
     \author{Your Name}
@@ -57,29 +56,31 @@ You can change the color and the way of navigation as you like. I will talk abou
 There will be only one unified color in the slides with this theme. You can change the overall color by setting RGB.
 
 ```
-\definecolor{main}{RGB}{163 0 0} % red
+\usetheme[RGB={12 72 66}]{Simple}
 ```
 
 Or HEX
 
 ```
-\definecolor{main}{HTML}{A30000}
+\usetheme[HTML=A30000]{Simple}
 ```
 
 Here are some colors I like. You can see the output in [examples](examples).
 
 ```
-\definecolor{main}{HTML}{096148} % green
-\definecolor{main}{RGB}{12 72 66} % bluegreen
-\definecolor{main}{HTML}{8D742A} % brown
-\definecolor{main}{RGB}{163 0 0} % red
+HTML=096148      % green
+RGB={12 72 66}   % bluegreen
+HTML=8D742A      % brown
+RGB={163 0 0}    % red
 ```
-You can search for beautiful colors [here](http://nipponcolors.com).
+You can search for beautiful colors [here](http://nipponcolors.com). 
+
+Or just generate three RGB values by heart. You may find the output is surprisingly beautiful when the three value are all below 100.
 
 
 ## Navigation
 
-For a long-time presentation, a suitable navigation is necessary. I selected four ways of navigation with different advantages.
+For a long-time presentation, a suitable navigation is necessary. I selected four ways of navigation with different advantages.(**focus on the top of each slide**)
 
 ### 1. split
 
@@ -139,9 +140,7 @@ Here is the usage of this theme which is kind of different from before.
 ```
 \documentclass[aspectratio=169]{beamer}
     \usepackage[english]{babel}
-    \usetheme{Bar169}
-
-    \definecolor{main}{RGB}{163 0 0} % red
+    \usetheme[RGB={12 72 66}]{Bar169}
 
     \author{Your Name}
     \title{Your Title}
@@ -219,6 +218,6 @@ However, you can achieve most of this effect by changing my 'simple' theme.
 
 ------------------
 
-Besides, it is more flexible to add the navigation.
+**Besides, it is more flexible to add the navigation.**
 
 ![simple-tree-metropolis](imgs/simple_tree_metropolis.jpg)

bar169.tex

@@ -3,8 +3,6 @@
     \input{global.tex}
     \usetheme{Bar169}
 
-    \definecolor{main}{RGB}{163 0 0} % red
-
     \begin{document}
         \input{content.tex}
     \end{document}

beamerthemeBar169.sty

@@ -4,6 +4,17 @@
 % under the LaTeX Project Public License
 
 
+\definecolor{beamer@simple@color}{RGB}{163 0 0} % bluegreen
+\DeclareOptionBeamer{gray}{\definecolor{beamer@simple@color}{gray}{#1}}
+\DeclareOptionBeamer{rgb}{\definecolor{beamer@simple@color}{rgb}{#1}}
+\DeclareOptionBeamer{RGB}[{12 72 0}]{\definecolor{beamer@simple@color}{RGB}{#1}}
+\DeclareOptionBeamer{HTML}{\definecolor{beamer@simple@color}{HTML}{#1}}
+\DeclareOptionBeamer{cmyk}{\definecolor{beamer@simple@color}{cmyk}{#1}}
+\DeclareOptionBeamer{cmy}{\definecolor{beamer@simple@color}{cmy}{#1}}
+\DeclareOptionBeamer{named}{\definecolor{beamer@simple@color}{named}{#1}}
+\DeclareOptionBeamer{hsb}{\definecolor{beamer@simple@color}{hsb}{#1}}
+\ProcessOptionsBeamer
+
 % sidebar
 % on the right
 \useoutertheme[width=5\baselineskip,right]{sidebar}
@@ -46,8 +57,8 @@
 \setbeamercolor{title in head/foot}{fg=black, bg=mygrey!5!white}
 
 % item settings
-\setbeamertemplate{itemize item}{$\color{main}\bullet$}
-\setbeamertemplate{itemize subitem}{$\color{main}\bullet$}
+\setbeamertemplate{itemize item}{$\color{beamer@simple@color}\bullet$}
+\setbeamertemplate{itemize subitem}{$\color{beamer@simple@color}\bullet$}
 \setbeamertemplate{enumerate items}[square]
 \setbeamertemplate{section in toc}[sections numbered]
 \setbeamertemplate{subsection in toc}[square]
@@ -55,15 +66,14 @@
 
 % color definition
 \definecolor{mygrey}{rgb}{0.52, 0.52, 0.51}
-\definecolor{main}{RGB}{163 0 0} % red
 
-\setbeamercolor{structure}{fg=main, bg=mygrey!10!white}
-\setbeamercolor{frametitle}{fg=main, bg=white}
+\setbeamercolor{structure}{fg=beamer@simple@color, bg=mygrey!10!white}
+\setbeamercolor{frametitle}{fg=beamer@simple@color, bg=white}
 \setbeamercolor{block title}{bg=mygrey!14!white}
 \setbeamercolor{block body}{fg=black,bg=mygrey!10!white}
 \setbeamercolor{block body alerted}{bg=white}
-\setbeamercolor{block title alerted}{fg=main,bg=white}
+\setbeamercolor{block title alerted}{fg=beamer@simple@color,bg=white}
 \setbeamerfont{block title alerted}{series=\mdseries}
-\setbeamercolor{alerted text}{fg=main}
+\setbeamercolor{alerted text}{fg=beamer@simple@color}
 \setbeamerfont{alerted text}{series=\bfseries}
-\hypersetup{colorlinks,linkcolor=,urlcolor=main!80!white}
+\hypersetup{colorlinks,linkcolor=,urlcolor=beamer@simple@color!80!white}

beamerthemeSimple.sty

@@ -4,6 +4,16 @@
 % under the LaTeX Project Public License
 
 
+\definecolor{beamer@simple@color}{RGB}{12 72 66} % bluegreen
+\DeclareOptionBeamer{gray}{\definecolor{beamer@simple@color}{gray}{#1}}
+\DeclareOptionBeamer{rgb}{\definecolor{beamer@simple@color}{rgb}{#1}}
+\DeclareOptionBeamer{RGB}[{12 72 0}]{\definecolor{beamer@simple@color}{RGB}{#1}}
+\DeclareOptionBeamer{HTML}{\definecolor{beamer@simple@color}{HTML}{#1}}
+\DeclareOptionBeamer{cmyk}{\definecolor{beamer@simple@color}{cmyk}{#1}}
+\DeclareOptionBeamer{cmy}{\definecolor{beamer@simple@color}{cmy}{#1}}
+\DeclareOptionBeamer{named}{\definecolor{beamer@simple@color}{named}{#1}}
+\DeclareOptionBeamer{hsb}{\definecolor{beamer@simple@color}{hsb}{#1}}
+\ProcessOptionsBeamer
 
 % footline
 % delete navigation below
@@ -31,37 +41,37 @@
 \setbeamercolor{title in head/foot}{fg=black, bg=mygrey!5!white}
 
 % item settings
-\setbeamertemplate{itemize item}{$\color{main}\bullet$}
-\setbeamertemplate{itemize subitem}{$\color{main}\bullet$}
+\setbeamertemplate{itemize item}{$\color{beamer@simple@color}\bullet$}
+\setbeamertemplate{itemize subitem}{$\color{beamer@simple@color}\bullet$}
 \setbeamertemplate{enumerate items}[square]
 \setbeamertemplate{section in toc}[sections numbered]
 \setbeamertemplate{subsection in toc}[square]
 
 
+
 % color definition
 \definecolor{mygrey}{rgb}{0.52, 0.52, 0.51}
-\definecolor{main}{RGB}{12 72 66} % bluegreen
 
-\setbeamercolor{structure}{fg=main, bg=mygrey!10!white}
-\setbeamercolor{frametitle}{fg=main, bg=white}
+\setbeamercolor{structure}{fg=beamer@simple@color, bg=mygrey!10!white}
+\setbeamercolor{frametitle}{fg=beamer@simple@color, bg=white}
 \setbeamercolor{block title}{bg=mygrey!14!white}
 \setbeamercolor{block body}{fg=black,bg=mygrey!10!white}
 \setbeamercolor{block body alerted}{bg=white}
-\setbeamercolor{block title alerted}{fg=main,bg=white}
-\setbeamercolor{alerted text}{fg=main}
+\setbeamercolor{block title alerted}{fg=beamer@simple@color,bg=white}
+\setbeamercolor{alerted text}{fg=beamer@simple@color}
 \setbeamerfont{block title alerted}{series=\mdseries}
 \setbeamerfont{alerted text}{series=\bfseries}
-\hypersetup{colorlinks,linkcolor=,urlcolor=main!80!white}
+\hypersetup{colorlinks,linkcolor=,urlcolor=beamer@simple@color!80!white}
 % \setbeamerfont{frametitle}{series=\bfseries}
 % \setbeamerfont{block title}{series=\bfseries}
 % \setbeamerfont{title}{series=\bfseries}
 % \setbeamertemplate{frametitle}{\insertframetitle\par\vskip-8pt\hrulefill} % add line under frametitle
 
 % % metropolis
-% % \definecolor{main}{RGB}{35 54 58}
+% % \definecolor{beamer@simple@color}{RGB}{35 54 58}
 % % no outer theme
 % \setbeamerfont{frametitle}{series=\bfseries}
-% \setbeamercolor{frametitle}{fg=white, bg=main}
+% \setbeamercolor{frametitle}{fg=white, bg=beamer@simple@color}
 % \setbeamerfont{block title}{series=\bfseries}
 % \setbeamerfont{block title alerted}{series=\bfseries}
 % \definecolor{alertcol}{RGB}{232 133 52}

content.tex

@@ -70,7 +70,7 @@
 \subsection{Other Environments}
 
 \begin{frame}{Algorithm}
-    
+    \scriptsize
     \begin{algorithm}[H]
         \KwData{this text}
         \KwResult{how to write algorithm with \LaTeX2e }
@@ -89,6 +89,30 @@
         \end{algorithm}
 \end{frame}
 
+\begin{frame}[fragile]
+    \frametitle{An Algorithm For Finding Primes Numbers.}
+    \scriptsize
+    \begin{verbatim}
+        int main (void)
+        {
+            std::vector<bool> is_prime (100, true);
+            for (int i = 2; i < 100; i++)
+            if (is_prime[i])
+            {
+                std::cout << i << " ";
+                for (int j = i; j < 100; is_prime [j] = false, j+=i);
+            }
+            return 0;
+        }
+    \end{verbatim}
+
+    \vspace{-0.7cm}
+
+    \begin{uncoverenv}
+    Note the use of \verb|\alert|.
+    \end{uncoverenv}
+\end{frame}
+
 \begin{frame}{More}
 
     More environments such as

simple.tex

@@ -1,9 +1,8 @@
 \documentclass{beamer}
     \input{pkgs.tex}
     \input{global.tex}
-    \usetheme{Simple}
     
-    \definecolor{main}{RGB}{12 72 66} % bluegreen
+    \usetheme{Simple}
     \useoutertheme{tree}
     
     \begin{document}