更改下面的命令即可改变 ppt 模板的主题或颜色
### 收集的主题
~~~
\usetheme{Marburg} % TOC tab
%\usetheme{Berkeley}
%\usetheme{PaloAlto}
%\usetheme{Goettingen}
%\usetheme{Hannover} % ok2
%\usetheme{Antibes} % Tree
%\usetheme{JuanLesPins} % ok 3
%\usetheme{Montpellier}
%\usetheme{Bergen} % w/o guide
%\usetheme{boxes}
%\usetheme{Bergen}
%\usetheme{Madrid}
%\usetheme{Pittsburgh}
%\usetheme{Rochester}
%\usetheme{Berlin} % mini guide
%\usetheme{Ilmenau} %ok 4
%\usetheme{Dresden}
%\usetheme{Darmstadt} %ok 1
%\usetheme{Frankfurt}
%\usetheme{Singapore} % ok ok
\usetheme{Szeged} % ok ok ok
%\usetheme{Copenhagen}
%\usetheme{Luebeck}
%\usetheme{Malmoe}
%\usetheme{Warsaw}
~~~
### 收集的颜色
~~~
%\usecolortheme{albatross}
%\usecolortheme{beetle}
%\usecolortheme{dove}
%\usecolortheme{fly}
%\usecolortheme{seagull}
%\usecolortheme{crane}
%\usecolortheme{rose}
%\usecolortheme{lily} % inner color
%\usecolortheme{orchid} % inner color
%\usecolortheme{whale} % outer color
%\usecolortheme{seahorse} % outer color %% ok
%\usecolortheme{sidebartab}
\usecolortheme{dolphin} % ok ok
~~~