From 5d0ebd014a9cd5d3d152041e888b702faad3b473 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <hugovk@users.noreply.github.com>
Date: Fri, 11 Mar 2022 22:41:57 +0200
Subject: [PATCH] Dark mode: Invert some images (#2409)

Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
---
 pep-0001.txt                                    | 1 +
 pep-0458.txt                                    | 1 +
 pep-0480.txt                                    | 1 +
 pep-0495.txt                                    | 2 ++
 pep-0525.txt                                    | 1 +
 pep-0532.txt                                    | 1 +
 pep-0550.rst                                    | 2 ++
 pep-0603.rst                                    | 2 ++
 pep-3147.txt                                    | 1 +
 pep_sphinx_extensions/pep_theme/static/dark.css | 4 ++++
 10 files changed, 16 insertions(+)

diff --git a/pep-0001.txt b/pep-0001.txt
index 586a2b55994..8aeccfbdf39 100644
--- a/pep-0001.txt
+++ b/pep-0001.txt
@@ -439,6 +439,7 @@ an API can replace version 1.
 The possible paths of the status of PEPs are as follows:
 
 .. image:: pep-0001-process_flow.png
+   :class: invert-in-dark-mode
    :alt: PEP process flow diagram
 
 While not shown in the diagram, "Accepted" PEPs may technically move to
diff --git a/pep-0458.txt b/pep-0458.txt
index df34f4a72e7..400843b36ea 100644
--- a/pep-0458.txt
+++ b/pep-0458.txt
@@ -489,6 +489,7 @@ trusted to sign for files available on PyPI.  The next two sections cover the
 details of signing repository files and the types of keys used for each role.
 
 .. image:: pep-0458-1.png
+   :class: invert-in-dark-mode
 
 Figure 1: An overview of the role metadata available on PyPI.
 
diff --git a/pep-0480.txt b/pep-0480.txt
index 0171e584fcf..37d942a1fac 100644
--- a/pep-0480.txt
+++ b/pep-0480.txt
@@ -207,6 +207,7 @@ packages in the minimum security model, but not in the maximum model, without
 also compromising a developer's key.
 
 .. image:: pep-0480-1.png
+   :class: invert-in-dark-mode
 
 Figure 1: An overview of the metadata layout in the maximum security model.
 The maximum security model supports continuous delivery and survivable key
diff --git a/pep-0495.txt b/pep-0495.txt
index 36a26d0f7fc..39d07e2aeab 100644
--- a/pep-0495.txt
+++ b/pep-0495.txt
@@ -387,6 +387,7 @@ the ``fold`` attribute depending on the kind of the transition.
 .. image:: pep-0495-fold-2.png
   :align: center
   :width: 60%
+  :class: invert-in-dark-mode
 
 The sketch above illustrates the relationship between the UTC and
 local time around a fall-back transition.  The zig-zag line is a graph
@@ -412,6 +413,7 @@ effect after the transition should be used.
 .. image:: pep-0495-gap.png
   :align: center
   :width: 60%
+  :class: invert-in-dark-mode
 
 The sketch above illustrates the relationship between the UTC and
 local time around a spring-forward transition.  At the transition, the
diff --git a/pep-0525.txt b/pep-0525.txt
index 6eb5f252fa9..dc7613b394c 100644
--- a/pep-0525.txt
+++ b/pep-0525.txt
@@ -389,6 +389,7 @@ iterated:
 .. image:: pep-0525-1.png
    :align: center
    :width: 80%
+   :class: invert-in-dark-mode
 
 
 PyAsyncGenASend and PyAsyncGenAThrow
diff --git a/pep-0532.txt b/pep-0532.txt
index 2c38ea2bd88..5a67830b387 100644
--- a/pep-0532.txt
+++ b/pep-0532.txt
@@ -681,6 +681,7 @@ breaking protocol (although it glosses over the technical detail of looking
 up the special methods via the type rather than the instance):
 
 .. image:: pep-0532/circuit-breaking-protocol.svg
+   :class: invert-in-dark-mode
    :alt: diagram of circuit breaking protocol applied to ternary expression
 
 We will work through the following expression::
diff --git a/pep-0550.rst b/pep-0550.rst
index 558f5578b31..0332900737f 100644
--- a/pep-0550.rst
+++ b/pep-0550.rst
@@ -1568,6 +1568,7 @@ Appendix: HAMT Performance Analysis
 .. figure:: pep-0550-hamt_vs_dict-v2.png
    :align: center
    :width: 100%
+   :class: invert-in-dark-mode
 
    Figure 1.  Benchmark code can be found here: [9]_.
 
@@ -1581,6 +1582,7 @@ The above chart demonstrates that:
 .. figure:: pep-0550-lookup_hamt.png
    :align: center
    :width: 100%
+   :class: invert-in-dark-mode
 
    Figure 2.  Benchmark code can be found here: [10]_.
 
diff --git a/pep-0603.rst b/pep-0603.rst
index f91a89a6e43..2e0b9d6a7eb 100644
--- a/pep-0603.rst
+++ b/pep-0603.rst
@@ -298,6 +298,7 @@ Performance
 .. figure:: pep-0603-hamt_vs_dict.png
    :align: center
    :width: 100%
+   :class: invert-in-dark-mode
 
    Figure 1.  Benchmark code can be found here: [3]_.
 
@@ -312,6 +313,7 @@ The above chart demonstrates that:
 .. figure:: pep-0603-lookup_hamt.png
    :align: center
    :width: 100%
+   :class: invert-in-dark-mode
 
    Figure 2.  Benchmark code can be found here: [4]_.
 
diff --git a/pep-3147.txt b/pep-3147.txt
index 359bdf2e425..e8c5a303df6 100644
--- a/pep-3147.txt
+++ b/pep-3147.txt
@@ -318,6 +318,7 @@ Here is a flow chart describing how modules are loaded:
 
 .. image:: pep-3147-1.png
    :scale: 75
+   :class: invert-in-dark-mode
 
 
 Alternative Python implementations
diff --git a/pep_sphinx_extensions/pep_theme/static/dark.css b/pep_sphinx_extensions/pep_theme/static/dark.css
index 314192d94c9..c324d92f032 100644
--- a/pep_sphinx_extensions/pep_theme/static/dark.css
+++ b/pep_sphinx_extensions/pep_theme/static/dark.css
@@ -16,3 +16,7 @@
     --colour-inline-code: #333;
     --colour-warning: #900;
 }
+
+img.invert-in-dark-mode {
+    filter: invert(1);
+}