diff --git a/.Rbuildignore b/.Rbuildignore
index 828a499..433d3e0 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -8,3 +8,4 @@
 ^docs$
 ^pkgdown$
 ^\.github$
+^codecov\.yml$
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..adb332c
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,12 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+      day: "sunday"
diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
new file mode 100644
index 0000000..001c2e5
--- /dev/null
+++ b/.github/workflows/R-CMD-check.yaml
@@ -0,0 +1,58 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: R-CMD-check
+
+jobs:
+  R-CMD-check:
+    runs-on: ${{ matrix.config.os }}
+
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+            # Windows
+          - {os: windows-latest, r: 'release'}
+            # Use 3.6 to trigger usage of RTools35
+          - {os: windows-latest, r: '3.6'}
+            # Linux
+          - {os: ubuntu-latest, r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-latest, r: 'release'}
+            # Mac OS
+          - {os: macos-latest,   r: 'release'}
+
+            # Vesions in use on PHS PWB
+          - {os: ubuntu-latest, r: '4.0.2'}
+          - {os: ubuntu-latest, r: '4.1.2'}
+          - {os: ubuntu-latest, r: '3.6.1'}
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: r-lib/actions/setup-pandoc@v2
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          r-version: ${{ matrix.config.r }}
+          http-user-agent: ${{ matrix.config.http-user-agent }}
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2
+        with:
+          upload-snapshots: true
diff --git a/.github/workflows/document.yaml b/.github/workflows/document.yaml
new file mode 100644
index 0000000..6c118dd
--- /dev/null
+++ b/.github/workflows/document.yaml
@@ -0,0 +1,42 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    paths: ["R/**"]
+
+name: Document
+
+jobs:
+  document:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup R
+        uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - name: Install dependencies
+        uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::roxygen2
+          needs: roxygen2
+
+      - name: Document
+        run: roxygen2::roxygenise()
+        shell: Rscript {0}
+
+      - name: Commit and push changes
+        run: |
+          git config --local user.name "$GITHUB_ACTOR"
+          git config --local user.email "$GITHUB_ACTOR@users.noreply.github.com"
+          git add man/\* NAMESPACE DESCRIPTION
+          git commit -m "Update documentation" || echo "No changes to commit"
+          git pull --ff-only
+          git push origin
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
new file mode 100644
index 0000000..24d656d
--- /dev/null
+++ b/.github/workflows/lint.yaml
@@ -0,0 +1,30 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: lint
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::lintr, local::.
+          needs: lint
+
+      - name: Lint
+        run: lintr::lint_package()
+        shell: Rscript {0}
diff --git a/.github/workflows/pkgdown.yaml b/.github/workflows/pkgdown.yaml
index 63cbb18..ed7650c 100644
--- a/.github/workflows/pkgdown.yaml
+++ b/.github/workflows/pkgdown.yaml
@@ -1,8 +1,10 @@
-# Workflow derived from https://github.com/r-lib/actions/tree/master/examples
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
 # Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
 on:
   push:
     branches: [main, master]
+  pull_request:
+    branches: [main, master]
   release:
     types: [published]
   workflow_dispatch:
@@ -12,24 +14,35 @@ name: pkgdown
 jobs:
   pkgdown:
     runs-on: ubuntu-latest
+    # Only restrict concurrency for non-PR jobs
+    concurrency:
+      group: pkgdown-${{ github.event_name != 'pull_request' || github.run_id }}
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    permissions:
+      contents: write
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: r-lib/actions/setup-pandoc@v1
+      - uses: r-lib/actions/setup-pandoc@v2
 
-      - uses: r-lib/actions/setup-r@v1
+      - uses: r-lib/actions/setup-r@v2
         with:
           use-public-rspm: true
 
-      - uses: r-lib/actions/setup-r-dependencies@v1
+      - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: pkgdown
+          extra-packages: any::pkgdown, local::.
           needs: website
 
-      - name: Deploy package
-        run: |
-          git config --local user.name "$GITHUB_ACTOR"
-          git config --local user.email "$GITHUB_ACTOR@users.noreply.github.com"
-          Rscript -e 'pkgdown::deploy_to_branch(new_process = FALSE)'
+      - name: Build site
+        run: pkgdown::build_site_github_pages(new_process = FALSE, install = FALSE)
+        shell: Rscript {0}
+
+      - name: Deploy to GitHub pages 🚀
+        if: github.event_name != 'pull_request'
+        uses: JamesIves/github-pages-deploy-action@v4.4.1
+        with:
+          clean: false
+          branch: gh-pages
+          folder: docs
diff --git a/.github/workflows/style.yaml b/.github/workflows/style.yaml
new file mode 100644
index 0000000..bee3e48
--- /dev/null
+++ b/.github/workflows/style.yaml
@@ -0,0 +1,73 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    paths: ["**.[rR]", "**.[qrR]md", "**.[rR]markdown", "**.[rR]nw", "**.[rR]profile"]
+
+name: Style
+
+jobs:
+  style:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup R
+        uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - name: Install dependencies
+        uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::styler, any::roxygen2
+          needs: styler
+
+      - name: Enable styler cache
+        run: styler::cache_activate()
+        shell: Rscript {0}
+
+      - name: Determine cache location
+        id: styler-location
+        run: |
+          cat(
+            "location=",
+            styler::cache_info(format = "tabular")$location,
+            "\n",
+            file = Sys.getenv("GITHUB_OUTPUT"),
+            append = TRUE,
+            sep = ""
+          )
+        shell: Rscript {0}
+
+      - name: Cache styler
+        uses: actions/cache@v3
+        with:
+          path: ${{ steps.styler-location.outputs.location }}
+          key: ${{ runner.os }}-styler-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-styler-
+            ${{ runner.os }}-
+
+      - name: Style
+        run: styler::style_pkg()
+        shell: Rscript {0}
+
+      - name: Commit and push changes
+        run: |
+          if FILES_TO_COMMIT=($(git diff-index --name-only ${{ github.sha }} \
+              | egrep --ignore-case '\.(R|[qR]md|Rmarkdown|Rnw|Rprofile)$'))
+          then
+            git config --local user.name "$GITHUB_ACTOR"
+            git config --local user.email "$GITHUB_ACTOR@users.noreply.github.com"
+            git commit ${FILES_TO_COMMIT[*]} -m "Style code (GHA)"
+            git pull --ff-only
+            git push origin
+          else
+            echo "No changes to commit."
+          fi
diff --git a/.github/workflows/test-coverage.yaml b/.github/workflows/test-coverage.yaml
new file mode 100644
index 0000000..27d4528
--- /dev/null
+++ b/.github/workflows/test-coverage.yaml
@@ -0,0 +1,50 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: test-coverage
+
+jobs:
+  test-coverage:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::covr
+          needs: coverage
+
+      - name: Test coverage
+        run: |
+          covr::codecov(
+            quiet = FALSE,
+            clean = FALSE,
+            install_path = file.path(normalizePath(Sys.getenv("RUNNER_TEMP"), winslash = "/"), "package")
+          )
+        shell: Rscript {0}
+
+      - name: Show testthat output
+        if: always()
+        run: |
+          ## --------------------------------------------------------------------
+          find ${{ runner.temp }}/package -name 'testthat.Rout*' -exec cat '{}' \; || true
+        shell: bash
+
+      - name: Upload test results
+        if: failure()
+        uses: actions/upload-artifact@v3
+        with:
+          name: coverage-test-failures
+          path: ${{ runner.temp }}/package
diff --git a/DESCRIPTION b/DESCRIPTION
index 8bd9346..1bd39db 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -15,6 +15,7 @@ Imports:
     ggplot2, 
     scales
 Suggests: 
+    covr,
     testthat (>= 3.0.0)
 Encoding: UTF-8
 LazyData: true
diff --git a/R/data.R b/R/data.R
index fb7a71d..3863617 100644
--- a/R/data.R
+++ b/R/data.R
@@ -34,7 +34,7 @@
 #' | x | supporting-liberties |
 #' | x | supporting-rusts |
 #'
-#'@md
+#' @md
 #'
 #' @format A character list
 "phs_palettes"
@@ -64,7 +64,7 @@
 #' | x | supporting-liberties |
 #' | x | supporting-rusts |
 #'
-#'@md
+#' @md
 #'
 #' @format A character list
 "phs_palette_types"
diff --git a/R/phs_pal.R b/R/phs_pal.R
index b69abfc..7b4e526 100644
--- a/R/phs_pal.R
+++ b/R/phs_pal.R
@@ -8,10 +8,9 @@ phs_pal <- function(type = "seq", palette = 1, direction = 1,
     if (direction == -1) {
       pal <- rev(pal)
     }
-    if(colour_names == TRUE){
+    if (colour_names == TRUE) {
       pal
-    }
-    else{
+    } else {
       as.vector(pal)
     }
   }
diff --git a/R/phs_pal1.R b/R/phs_pal1.R
index becf45a..4a8074e 100644
--- a/R/phs_pal1.R
+++ b/R/phs_pal1.R
@@ -3,13 +3,17 @@ phs_pal1 <- function(n, name) {
   phs_palettes <- phsstyles::phs_palettes
 
   if (!(name %in% names(phs_palettes))) {
-    stop(paste(name,"is not a valid palette name.\n"))
+    stop(paste(name, "is not a valid palette name.\n"))
   }
 
   if (n > length(phs_palettes[[name]]) & !(name %in% phs_palette_types[["seq"]])) {
-    warning(paste("n too large, allowed maximum for palette", name, "is",
-                  length(phs_palettes[[name]])),
-            "\nReturning the palette you asked for with that many colors\n")
+    warning(
+      paste(
+        "n too large, allowed maximum for palette", name, "is",
+        length(phs_palettes[[name]])
+      ),
+      "\nReturning the palette you asked for with that many colors\n"
+    )
     return(phs_pal1(length(phs_palettes[[name]]), name))
   }
 
diff --git a/R/phsstyles.R b/R/phsstyles.R
index 73d3372..d911ae1 100644
--- a/R/phsstyles.R
+++ b/R/phsstyles.R
@@ -11,6 +11,10 @@ NULL
 
 # Stops notes from appearing in R CMD check because of undefined global
 # variables
-if (getRversion() >= "2.15.1") utils::globalVariables(c("phs_colour_values",
-                                                        "phs_palette_types",
-                                                        "phs_palettes"))
+if (getRversion() >= "2.15.1") {
+  utils::globalVariables(c(
+    "phs_colour_values",
+    "phs_palette_types",
+    "phs_palettes"
+  ))
+}
diff --git a/README.Rmd b/README.Rmd
index 0be9934..f07e64a 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -14,8 +14,14 @@ knitr::opts_chunk$set(
 
 # phsstyles
 
+<!-- badges: start -->
 [![GitHub release (latest by date)](https://img.shields.io/github/v/release/Public-Health-Scotland/phsstyles)](https://github.com/Public-Health-Scotland/phsstyles/releases/latest)
 
+[![Codecov test coverage](https://codecov.io/gh/Public-Health-Scotland/phsstyles/branch/master/graph/badge.svg)](https://app.codecov.io/gh/Public-Health-Scotland/phsstyles?branch=master)
+
+[![R-CMD-check](https://github.com/Public-Health-Scotland/phsstyles/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/Public-Health-Scotland/phsstyles/actions/workflows/R-CMD-check.yaml)
+<!-- badges: end -->
+
 There are 8 colours for use in [Public Health Scotland (PHS)](https://www.publichealthscotland.scot/):
 
 - 4 main colours (PHS purple, PHS magenta, PHS blue and PHS green)
@@ -105,7 +111,7 @@ library(ggplot2)
 # Apply PHS theme to a chart
 qplot(mpg, wt, data = mtcars) + theme_phs()
 
-# Overwirte a feature (e.g. remove vertical gridlines and add horizontal ones)
+# Overwrite a feature (e.g. remove vertical gridlines and add horizontal ones)
 qplot(mpg, wt, data = mtcars) + theme_phs() +
   theme(panel.grid.major.x = element_blank(), 
         panel.grid.major.y = element_line(colour = 
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 0000000..04c5585
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,14 @@
+comment: false
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true
+    patch:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true