title: Not able to change the background color of the bs4Dash::dashboardSidebar() properly
body: <p><strong>1. Color issue using only the <em>bs4Dash</em> package</strong></p>
  <p>I am starting to use the package <em>bs4Dash</em> and I am facing a problem with the background color of the left sidebar bs4Dash::dashboardSidebar(). I observe that when I start the app the background color of the left sidebar is always in gray, but when I switch to dark mode and back to light mode the color render with a white color background.</p>
  <p>You can observe this behavior using the code below that was taken from <a href="https://rinterface.github.io/bs4Dash/articles/step-by-step.html" rel="nofollow noreferrer">help webpage</a> of <em>bs4Dash</em></p>
  <pre><code>library(shiny)
  library(bs4Dash)
  
  shinyApp(
      ui = dashboardPage(
          title = &quot;Basic Dashboard&quot;,
          header = dashboardHeader(),
          sidebar = dashboardSidebar(),
          controlbar = dashboardControlbar(),
          footer = dashboardFooter(),
          body = dashboardBody()
      ),
      server = function(input, output) {}
  ) 
  </code></pre>
  <p><strong>2. Color problem using <em>fresh</em> and <em>bs4Dash</em> package</strong></p>
  <p>Using the package <em>fresh</em> when I open the app for the first time It is still with the grey background color, but when I switch from dark mode to light It renders the color according to fresh::create_theme().</p>
  <p>Here is an example</p>
  <pre><code># library
  
  library(shiny)
  library(bs4Dash)
  library(fresh)
  
  # theme creator with fresh::
  
  mytheme &lt;- create_theme(
      bs4dash_sidebar_light(
          bg = &quot;#FFFF00&quot;)
  )
  
  #shinyApp
  
  shinyApp(
      ui = dashboardPage(
          title = &quot;Basic Dashboard&quot;,
          header = dashboardHeader(),
          sidebar = dashboardSidebar(),
          controlbar = dashboardControlbar(),
          footer = dashboardFooter(),
          body = dashboardBody(use_theme(mytheme)),
          freshTheme = TRUE
      ),
      server = function(input, output) {}
  )
  </code></pre>
  <p>I found out <a href="https://github.com/RinteRface/bs4Dash/issues/168" rel="nofollow noreferrer">this</a> issue in the Github but can't figure out how to solve this problem.</p>