diff --git a/book/src/SUMMARY.md b/book/src/SUMMARY.md
index 8987306..534e30e 100644
--- a/book/src/SUMMARY.md
+++ b/book/src/SUMMARY.md
@@ -21,6 +21,7 @@
     - [Metropolis](./themes/gallery/metropolis.md)
     - [University](./themes/gallery/university.md)
     - [Bipartite](./themes/gallery/bipartite.md)
+    - [Rectangles](./themes/gallery/rectangles.md)
   - [Build your own](./themes/your-own.md)
 - [Utilities](./utils/utils.md)
   - [Side by side](./utils/side-by-side.md)
diff --git a/book/src/themes/gallery/rectangles.md b/book/src/themes/gallery/rectangles.md
new file mode 100644
index 0000000..a58db8a
--- /dev/null
+++ b/book/src/themes/gallery/rectangles.md
@@ -0,0 +1,59 @@
+# Rectangles theme
+
+![rectangles](rectangles.png)
+
+This theme is inspired by the LaTeX beamer outer theme "miniframes" and inner theme "rectangles". It is similar to the `university` theme. but designed to be easier to use at the cost of customizability.
+
+Use it via
+```typ
+{{#include ../../IMPORT.typ}}
+#import themes.rectangles: *
+
+#show: rectangles-theme.with(...)
+```
+
+`rectangles` uses polylux' section handling, the regular `#outline()` will not work
+properly, use `#polylux-outline` instead.
+Starting a new section is done via the `#new-section()` function.
+
+Text is configured to have a base font size of 25 pt.
+
+## Options for initialisation
+`rectangles-theme` accepts the following optional keyword arguments:
+
+- `aspect-ratio`: the aspect ratio of the slides, either `"16-9"` or `"4-3"`,
+  default is `"16-9"`
+- `title`: title of the presentation, default: `none`
+- `subtitle`: subtitle of the presentation, default: `none`
+- `authors`: authors of presentation, can be an array of contents or a single content, default: `none`
+- `date`: date of the presentation, default: `none`
+- `short-title`: short title of the presentation to display in the footer of each slide, default: `none`, falls back to `title + [ – ] + subtitle` if `subtitle` was given and `title` otherwise
+- `short-authors`: short authors of the presentation to display in the footer of each slide, default: `none`, falls back to `authors.join(", ")`
+- `accent-fill-color`: fill color of the decorations, default: `rgb("#008ccc")`
+- `accent-text-color`: text color of the decorations, default: `white`
+
+## Slide functions
+`rectangles` provides the following custom slide functions:
+
+```typ
+#title-slide()
+```
+Creates a title slide where title and subtitle are displayed in a solid box and the authors and date are displayed below.
+
+Does not accept arguments or additional content.
+
+---
+
+```typ
+#slide(...)[
+  ...
+]
+```
+Decorates the provided content with a header containing the current section (if any) and a footer containing the short authors, short presentation title, and the slide number.
+
+## Example code
+The image at the top is created by the following code:
+```typ
+{{#include ../../IMPORT.typ}}
+{{#include rectangles.typ:3:}}
+```
diff --git a/book/src/themes/gallery/rectangles.png b/book/src/themes/gallery/rectangles.png
new file mode 100644
index 0000000..d4314a5
Binary files /dev/null and b/book/src/themes/gallery/rectangles.png differ
diff --git a/book/src/themes/gallery/rectangles.typ b/book/src/themes/gallery/rectangles.typ
new file mode 100644
index 0000000..a0932ff
--- /dev/null
+++ b/book/src/themes/gallery/rectangles.typ
@@ -0,0 +1,37 @@
+#import "../../../../polylux.typ": *
+
+#import themes.rectangles: *
+
+#set text(font: "Fira Sans", weight: "regular")
+
+#show: rectangles-theme.with(
+  authors: ("Author A", "Author B"),
+  title: "Title",
+  subtitle: "Subtitle",
+  date: "Date",
+)
+
+#title-slide()
+
+#new-section("First section")
+
+#slide[
+  = First slide
+
+  #lorem(20)
+]
+
+#slide[
+  = Second slide
+
+  - Bullet points...
+  - They are using the accent color!
+]
+
+#slide[
+  = Third slide
+  Did you know that...
+
+  #pause
+  ...you can see the current section at the top of the slide?
+]
diff --git a/themes/rectangles.typ b/themes/rectangles.typ
new file mode 100644
index 0000000..0da835b
--- /dev/null
+++ b/themes/rectangles.typ
@@ -0,0 +1,146 @@
+#import "../logic.typ"
+#import "../utils/utils.typ"
+
+// Rectangles theme by Ruben Felgenhauer (felsenhower).
+// This theme was inspired by LaTeX presentations using the outer theme "miniframes" and inner theme "rectangles".
+
+#let rectangles-title = state("rectangles-title", none)
+#let rectangles-subtitle = state("rectangles-subtitle", none)
+#let rectangles-authors = state("rectangles-authors", none)
+#let rectangles-date = state("rectangles-date", none)
+#let rectangles-short-title = state("rectangles-short-title", none)
+#let rectangles-short-authors = state("rectangles-short-authors", none)
+#let rectangles-accent-fill-color = state("rectangles-accent-fill-color", none)
+#let rectangles-accent-text-color = state("rectangles-accent-text-color", none)
+
+#let rectangles-theme(
+  aspect-ratio: "16-9",
+  title: none,
+  subtitle: none,
+  authors: none,
+  date: none,
+  short-title: none,
+  short-authors: none,
+  accent-fill-color: rgb("#008ccc"),
+  accent-text-color: white,
+  body
+) = {
+  set page(
+    paper: "presentation-" + aspect-ratio,
+    margin: 0em,
+    header: none,
+    footer: none,
+  )
+  set text(size: 25pt)
+  show footnote.entry: set text(size: .6em)
+  show heading.where(level: 1): it => pad(bottom: 1em, it)
+  set list(marker: text(accent-fill-color, sym.square.filled))
+  
+  if short-title == none and title != none {
+    short-title = if subtitle != none {
+      title + [ – ] + subtitle
+    } else {
+      title
+    }
+  }
+  if authors != none and type(authors) != "array" {
+    authors = (authors, )
+  }
+  if short-authors == none and authors != none {
+    short-authors = authors.join(", ")
+  }
+  
+  rectangles-short-title.update(short-title)
+  rectangles-title.update(title)
+  rectangles-subtitle.update(subtitle)
+  rectangles-accent-fill-color.update(accent-fill-color)
+  rectangles-accent-text-color.update(accent-text-color)
+  rectangles-authors.update(authors)
+  rectangles-date.update(date)
+  rectangles-short-authors.update(short-authors)
+
+  body
+}
+
+#let title-slide() = {
+  let content = locate(loc => {
+    let authors = rectangles-authors.at(loc)
+    let title = rectangles-title.at(loc)
+    let subtitle = rectangles-subtitle.at(loc)
+    let date = rectangles-date.at(loc)
+    let accent-fill-color = rectangles-accent-fill-color.at(loc)
+    let accent-text-color = rectangles-accent-text-color.at(loc)
+
+    align(center + horizon, [
+      #block(fill: accent-fill-color, width: 60%, inset: 1em)[
+        #set text(accent-text-color)
+        #text(1.5em, weight: 500, title) \
+        #{
+          if subtitle != none {
+            parbreak()
+            subtitle
+          }
+        }
+      ]
+      #set text(size: .8em)
+      #grid(
+        columns: 1,
+        row-gutter: 1em,
+        ..authors, "", date
+      )
+    ])
+  })
+
+  logic.polylux-slide(content)
+}
+
+#let slide(
+  body
+) = {
+  body = pad(x: 2em, y: .5em, body)
+  
+  let decoration(body) = {
+    locate(loc => {
+      let accent-fill-color = rectangles-accent-fill-color.at(loc)
+      let accent-text-color = rectangles-accent-text-color.at(loc)
+      set text(accent-text-color, size: 11pt)
+      block(
+        fill: accent-fill-color,
+        width: 100%,
+        inset: 0.75em,
+        height: 2.2em,
+        align(horizon, body)
+      )
+    })
+  }
+  
+  let header = {
+    align(top, decoration( 
+      align(center, utils.current-section),
+    ))
+  }
+
+  let footer = {
+    align(bottom,
+    decoration(grid(
+      columns: (1fr, auto, 1fr),
+      align(left, rectangles-short-authors.display()),
+      align(center, rectangles-short-title.display()),
+      align(right, logic.logical-slide.display() + [~/~] + utils.last-slide-number)
+    )))
+  }
+
+  set page(
+    margin: (top: 2em, bottom: 1em, x: 0em),
+    header: header,
+    footer: footer,
+    footer-descent: 0em,
+    header-ascent: 0em,
+  )
+
+  logic.polylux-slide(body)
+}
+
+#let new-section(name) = {
+  utils.register-section(name)
+} 
diff --git a/themes/themes.typ b/themes/themes.typ
index c3ef0ed..bf7ee84 100644
--- a/themes/themes.typ
+++ b/themes/themes.typ
@@ -3,3 +3,4 @@
 #import "bipartite.typ"
 #import "university.typ"
 #import "metropolis.typ"
+#import "rectangles.typ"