diff --git a/DESCRIPTION b/DESCRIPTION
index 158be21c4..137e2c75f 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -27,9 +27,8 @@ Imports:
     grDevices,
     lifecycle (>= 0.2.0),
     rlang (>= 1.1.0),
-    shiny (>= 1.6.0),
-    styler (>= 1.2.0)
 Suggests:
+    shiny (>= 1.6.0),
     cli (>= 3.4.0),
     knitr (>= 1.42),
     magrittr (>= 1.5),
@@ -48,7 +47,6 @@ Language: en-US
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.2.3
 Collate:
-    'include_css_js.R'
     'qenv-class.R'
     'qenv-errors.R'
     'qenv-concat.R'
diff --git a/NAMESPACE b/NAMESPACE
index eeab3cf32..a122e287b 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -21,7 +21,5 @@ exportMethods(join)
 exportMethods(new_qenv)
 exportMethods(show)
 import(grDevices)
-import(shiny)
 importFrom(lifecycle,badge)
 importFrom(methods,show)
-importFrom(styler,style_text)
diff --git a/R/include_css_js.R b/R/include_css_js.R
deleted file mode 100644
index 85464fb3c..000000000
--- a/R/include_css_js.R
+++ /dev/null
@@ -1,21 +0,0 @@
-#' Include `CSS` files from `/inst/css/` package directory to application header
-#'
-#' `system.file` should not be used to access files in other packages, it does
-#' not work with `devtools`. Therefore, we redefine this method in each package
-#' as needed. Thus, we do not export this method
-#'
-#' @param pattern (`character`) pattern of files to be included
-#'
-#' @return HTML code that includes `CSS` files
-#' @keywords internal
-include_css_files <- function(pattern = "*") {
-  css_files <- list.files(
-    system.file("css", package = "teal.code", mustWork = TRUE),
-    pattern = pattern, full.names = TRUE
-  )
-  if (length(css_files) == 0) {
-    return(NULL)
-  }
-
-  shiny::singleton(lapply(css_files, shiny::includeCSS))
-}
diff --git a/R/teal.code-package.R b/R/teal.code-package.R
index f4a0a1fb5..2d806c346 100644
--- a/R/teal.code-package.R
+++ b/R/teal.code-package.R
@@ -7,7 +7,5 @@
 #' @keywords internal
 "_PACKAGE"
 
-#' @import shiny
 #' @importFrom lifecycle badge
-#' @importFrom styler style_text
 NULL
diff --git a/inst/css/debug_info_fa.css b/inst/css/debug_info_fa.css
deleted file mode 100644
index cfe444247..000000000
--- a/inst/css/debug_info_fa.css
+++ /dev/null
@@ -1,3 +0,0 @@
-/* used by get_eval_details_ui */
-.fa-stack-1x,.fa-stack-2x {margin-top: -15px;}
-.fa-stack {height: 0;}
diff --git a/man/include_css_files.Rd b/man/include_css_files.Rd
deleted file mode 100644
index 76ac430da..000000000
--- a/man/include_css_files.Rd
+++ /dev/null
@@ -1,20 +0,0 @@
-% Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/include_css_js.R
-\name{include_css_files}
-\alias{include_css_files}
-\title{Include \code{CSS} files from \verb{/inst/css/} package directory to application header}
-\usage{
-include_css_files(pattern = "*")
-}
-\arguments{
-\item{pattern}{(\code{character}) pattern of files to be included}
-}
-\value{
-HTML code that includes \code{CSS} files
-}
-\description{
-\code{system.file} should not be used to access files in other packages, it does
-not work with \code{devtools}. Therefore, we redefine this method in each package
-as needed. Thus, we do not export this method
-}
-\keyword{internal}