Customise Beamer templates for RMarkdown

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I'm writing a beamer presentation using RMarkdown. I have selected a template from this website. I really love the functionality of the template, however, I'd like to change the base colour closer to something matching my college. Is it possible to edit the yaml or style file somehow to do this?

I have the following yaml information for my Rmd file. 

---
title: "My title"
author: "My name"
date: "06/03/2020"
output:
  beamer_presentation:
    slide_level: 2
    toc: true
    theme: "Berkeley"
    colortheme: "seagull"
    fonttheme: "structurebold"
---

I'd like to make changes to the colour theme "seagull", which I assume must be included in RMarkdown files structure somewhere. Or can this be change using a style sheet?

Thanks

r-markdown beamer r latex
1 Answers

If you remove the seagull color theme, you can simply change most colours with \setbeamercolor{structure}{fg=yourcolourname} 

---
title: "My title"
author: "My name"
date: "06/03/2020"
output:
  beamer_presentation:
    slide_level: 2
    toc: true
    theme: "Berkeley"
    fonttheme: "structurebold"
    keep_tex: true
header-includes: 
- \definecolor{yourcolourname}{rgb}{1,0.5,0}
- \setbeamercolor{structure}{fg=yourcolourname}
---

test

https://rstudio.cloud/project/1016900

user_27770740
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