diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,46 @@
+
+# Revision history for `hyper-extra`
+
+## v0.3.0.0 (2025-10-21)
+
+Added
+
+* The `chart` function plots charts created with the `Chart` package.
+
+Changed
+
+* The `dia` function now renders a diagram using absolute sizes, where one unit corresponds to `1px`. See
+[#40](https://github.com/HeinrichApfelmus/hyper-haskell/issues/40).
+
+## v0.2.0.2 (2025-10-19)
+
+* Bump dependencies, modernize `.cabal` file.
+
+## v0.2.0.1
+
+* Bump dependencies
+
+## v0.2.0.0
+
+* Add preliminary support for the `svg-builder` package.
+* Compatibility with GHC 8.8
+
+## v0.1.1.0
+
+* Add preliminary support for the `QuickCheck` package.
+
+## v0.1.0.3
+
+* Bump dependencies for compatibility with GHC 8.4
+
+## v0.1.0.2
+
+* Bump dependencies for compatibility with GHC 8.2
+
+## v0.1.0.1
+
+* Bump dependencies.
+
+## v0.1.0.0
+
+* Initial release.
diff --git a/hyper-extra.cabal b/hyper-extra.cabal
--- a/hyper-extra.cabal
+++ b/hyper-extra.cabal
@@ -1,45 +1,51 @@
-cabal-version:      3.0
-name:               hyper-extra
-version:            0.2.0.2
-synopsis:           Display instances for the HyperHaskell graphical Haskell interpreter
+cabal-version: 3.0
+name:          hyper-extra
+version:       0.3.0.0
+synopsis:
+  Display instances for the HyperHaskell graphical Haskell interpreter
+
 description:
   This package is part of the /HyperHaskell/ project and provides
   visual representations for various data types, in particular
   diagrams from the @diagrams@ package.
   .
-category:           Graphics, Pretty Printer
-homepage:           https://github.com/HeinrichApfelmus/hyper-haskell
-license:            BSD-3-Clause
-license-file:       LICENSE
 
-author:             Heinrich Apfelmus
-maintainer:         Heinrich Apfelmus <apfelmus quantentunnel de>
-copyright:          (c) Heinrich Apfelmus 2016-2024
+category:      Graphics, Pretty Printer
+homepage:      https://github.com/HeinrichApfelmus/hyper-haskell
+license:       BSD-3-Clause
+license-file:  LICENSE
+author:        Heinrich Apfelmus
+maintainer:    Heinrich Apfelmus <apfelmus quantentunnel de>
+copyright:     (c) Heinrich Apfelmus 2016-2025
+extra-doc-files:
+  CHANGELOG.md
 
-tested-with: 
-  , GHC == 8.10.7
-  , GHC == 9.2.8
-  , GHC == 9.4.7
-  , GHC == 9.6.7
-  , GHC == 9.8.4
-  , GHC == 9.10.2
-  , GHC == 9.12.2
+tested-with:
+  GHC ==8.10.7
+   || ==9.2.8
+   || ==9.4.7
+   || ==9.6.7
+   || ==9.8.4
+   || ==9.10.2
+   || ==9.12.2
 
 source-repository head
-  type:               git
-  location:           https://github.com/HeinrichApfelmus/hyper-haskell.git
-  subdir:             haskell/hyper-extra/
+  type:     git
+  location: https://github.com/HeinrichApfelmus/hyper-haskell.git
+  subdir:   haskell/hyper-extra/
 
 library
-  hs-source-dirs:     src
-  default-language:   Haskell2010
+  hs-source-dirs:   src
+  default-language: Haskell2010
   build-depends:
-    , base         >= 4.6     && < 4.22
-    , diagrams-lib >= 1.3     && < 1.6
-    , diagrams-svg >= 1.4     && < 1.6
-    , hyper        >= 0.2     && < 0.3
-    , QuickCheck   >= 2.3.0.2 && < 2.18
-    , svg-builder  >= 0.1     && < 0.2
-    , text         >= 0.11    && < 2.2
-  exposed-modules:
-    Hyper.Extra
+    , base            >=4.6     && <4.22
+    , Chart           >=1.8     && <2
+    , Chart-diagrams  >=1.8     && <2
+    , diagrams-lib    >=1.3     && <1.6
+    , diagrams-svg    >=1.4     && <1.6
+    , hyper           >=0.2     && <0.3
+    , QuickCheck      >=2.3.0.2 && <2.18
+    , svg-builder     >=0.1     && <0.2
+    , text            >=0.11    && <2.2
+
+  exposed-modules:  Hyper.Extra
diff --git a/src/Hyper/Extra.hs b/src/Hyper/Extra.hs
--- a/src/Hyper/Extra.hs
+++ b/src/Hyper/Extra.hs
@@ -1,17 +1,20 @@
 module Hyper.Extra (
     -- * Synopsis
     -- | Visual representation for various data types.
-    
+
     -- * SVG
     fromSvg,
     -- * Diagrams
     dia,
+    -- * Charts
+    chart,
 
     -- * QuickCheck
     hyperCheck,
     ) where
 
-import Hyper
+import Hyper ( Graphic, html )
+import System.IO.Unsafe ( unsafePerformIO )
 
 import qualified Data.Text        as Text
 import qualified Data.Text.Lazy   as Text.Lazy
@@ -20,20 +23,53 @@
 import           Diagrams.Backend.SVG
 import qualified Graphics.Svg
 
+import qualified Graphics.Rendering.Chart as Chart
+
 import qualified Test.QuickCheck  as Q
+import qualified Graphics.Rendering.Chart.Backend.Diagrams as Chart
 
 {-----------------------------------------------------------------------------
     Integration of the `svg-builder` and `diagrams-svg` spackages
 ------------------------------------------------------------------------------}
 -- | Render a SVG document.
 -- This assumes that the argument is indeed a complete SVG document,
--- i.e. an @<SVG>@ tag.s
+-- i.e. an @<SVG>@ tag.
 fromSvg :: Graphics.Svg.Element -> Graphic
 fromSvg = html . Text.Lazy.toStrict . Graphics.Svg.renderText
 
 -- | Render a diagram via SVG.
+--
+-- Uses absolute units:
+-- one unit in the diagram corresponds to @1px@ in the rendered image.
+--
+-- To change the scale in your diagram before rendering, use 'scale'.
 dia :: QDiagram SVG V2 Double Any -> Graphic
-dia = fromSvg . renderDia SVG (SVGOptions (mkWidth 250) Nothing (Text.pack "") [] True)
+dia = fromSvg . renderDia SVG (SVGOptions sz Nothing (Text.pack "") [] True)
+  where
+    sz = mkSizeSpec2D Nothing Nothing
+
+{-----------------------------------------------------------------------------
+    Integration of the `Chart` package
+------------------------------------------------------------------------------}
+chartX, chartY, chartScale :: Double
+chartScale = 1.3
+chartX = 640 / chartScale
+chartY = 480 / chartScale
+
+-- | Create a global environment for rendering charts.
+-- Essentially, this will load fonts.
+globalChartEnv :: Chart.DEnv Double
+globalChartEnv = unsafePerformIO $
+    Chart.defaultEnv Chart.vectorAlignmentFns chartX chartY
+
+-- | Render a chart via SVG.
+--
+-- The rendered image has size 640 x 480 px.
+chart :: Chart.ToRenderable a => a -> Graphic
+chart = dia
+    . scale chartScale
+    . fst . Chart.runBackend globalChartEnv
+    . flip Chart.render (chartX, chartY) . Chart.toRenderable
 
 {-----------------------------------------------------------------------------
     Integration of the `QuickCheck` package