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I would like to change the color (bg and fg) of the remark environment in a Beamer document. I have setup my document using:

\usetheme{AnnArbor}
\usecolortheme{crane}

I read in some other question that I should use something like:

\setbeamercolor{theorem text}{fg=black}

or something like

\setbeamercolor{block title example}{bg=orange,fg=white}

I have tried both, using remark or rem instead of theorem or example to no avail. I have to make it clear that I don't want to create a new environment, as I use Lyx and I need to stick to the default "remark" environment, only modified through the preamble.

UPDATE

I have checked that Lyx adds the following definitions to the preamble:

\theoremstyle{definition}
     \newtheorem*{defn*}{\protect\definitionname}
  \theoremstyle{remark}
  \newtheorem*{rem*}{\protect\remarkname}
  \theoremstyle{definition}
  \newtheorem*{example*}{\protect\examplename}
  \theoremstyle{plain}
  \newtheorem*{fact*}{\protect\factname}
  \theoremstyle{definition}
  \newtheorem*{problem*}{\protect\problemname}
  \theoremstyle{definition}
  \newtheorem*{xca*}{\protect\exercisename}

Is this a Lyx related question instead of a Beamer one?

share|improve this question
    
Does this question help?: tex.stackexchange.com/questions/123951/… –  pst Mar 27 at 16:33
    
Unfortunately no, as a new environment is defined to make the changes. As I want to use Lyx, this is precisely the kind of solutions that I cannot apply. –  jcredberry Mar 27 at 18:15
    
There's no remark environment predefined in beamer. –  Gonzalo Medina Mar 27 at 19:08
    
Thanks Gonzalo. Check on the UPDATE added to the question. –  jcredberry Mar 27 at 20:17
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