The Debian packaging of stylish-haskell is maintained in git, using
the merging workflow described in dgit-maint-merge(7).  There isn't a
patch queue that can be represented as a quilt series.

A detailed breakdown of the changes is available from their canonical
representation - git commits in the packaging repository.  For
example, to see the changes made by the Debian maintainer in the first
upload of upstream version 1.2.3, you could use:

    % git clone https://git.dgit.debian.org/stylish-haskell
    % cd stylish-haskell
    % git log --oneline 1.2.3..debian/1.2.3-1 -- . ':!debian'

(If you have dgit, use `dgit clone stylish-haskell`, rather than plain
`git clone`.)

A single combined diff, containing all the changes, follows.
--- stylish-haskell-0.12.2.0.orig/README.markdown
+++ stylish-haskell-0.12.2.0/README.markdown
@@ -1,9 +1,5 @@
 ## stylish-haskell
 
-<img src="./assets/Logo/SVG/RoundedLogo.svg" width="100px">
-
-![Build Status](https://github.com/jaspervdj/patat/workflows/CI/badge.svg)
-
 ## Introduction
 
 A simple Haskell code prettifier. The goal is not to format all of the code in
@@ -12,16 +8,6 @@ manually cleaning up import statements e
 
 This tool tries to help where necessary without getting in the way.
 
-## Installation
-
-You can install it using `stack install stylish-haskell` or `cabal install stylish-haskell`.
-
-You can also install it using your package manager:
-
-- Debian 9 or later: `apt-get install stylish-haskell`
-- Ubuntu 16.10 or later: `apt-get install stylish-haskell`
-- Arch Linux: `pacman -S stylish-haskell`
-
 ## Features
 
 - Aligns and sorts `import` statements