Change the color of action button in shiny

Question

I am trying to change the color of the action button from gray to orange.

actionButton("run","Run Analysis") 

(This is in server.R.) Is it possible to change its color?

Answer 1

Below, I've made your action button look like a submit button (also adding a font-awesome icon):

actionButton("run", "Run Analysis", icon("paper-plane"),      style="color: #fff; background-color: #337ab7; border-color: #2e6da4") 

Answer 2

As @MLavoie mentioned, you can embed CSS in your shiny app using tags$head. Try this:

library(shiny)  ui <- shinyUI(fluidPage(   tags$head(     tags$style(HTML('#run{background-color:orange}'))   ),   actionButton("run","Run Analysis") )) server <- shinyServer(function(input, output) {  }) shinyApp(ui, server) 

If you're unfamiliar to CSS, w3schools has really good and easy tutorials.