From 79aa310a34651f1c86f5a6329b2e0f4080907ffc Mon Sep 17 00:00:00 2001
From: "Patrick H. Lauke" <redux@splintered.co.uk>
Date: Wed, 29 Apr 2026 00:58:12 +0100
Subject: [PATCH 1/4] Add C40 (two-color focus) as sufficient for 1.4.11
 Non-text contrast

Based on the discussion and agreement in #2757, it seems it was agreed that C40 does indeed cover 1.4.11 as a sufficient technique, but it was never added in #3112 /cc @dbjorge

Closes https://github.com/w3c/wcag/issues/2575
---
 understanding/understanding.11tydata.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/understanding/understanding.11tydata.js b/understanding/understanding.11tydata.js
index 4ca0e4bb4f..5f2f53cc1e 100644
--- a/understanding/understanding.11tydata.js
+++ b/understanding/understanding.11tydata.js
@@ -535,7 +535,7 @@ export default function (data) {
           {
             title:
               "Situation A: Color is used to identify user interface components or used to identify user interface component states",
-            techniques: ["G195", "G174"],
+            techniques: ["G195", "G174","C40"],
           },
           {
             title: "Situation B: Color is required to understand graphical content",

From e707a68a53446a9738f9ca78755fa83bfaf63b4a Mon Sep 17 00:00:00 2001
From: "Patrick H. Lauke" <redux@splintered.co.uk>
Date: Fri, 8 May 2026 17:34:33 +0100
Subject: [PATCH 2/4] Update understanding/understanding.11tydata.js

Co-authored-by: Kenneth G. Franqueiro <kfranqueiro@users.noreply.github.com>
---
 understanding/understanding.11tydata.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/understanding/understanding.11tydata.js b/understanding/understanding.11tydata.js
index 5f2f53cc1e..3b4ac65a5a 100644
--- a/understanding/understanding.11tydata.js
+++ b/understanding/understanding.11tydata.js
@@ -535,7 +535,7 @@ export default function (data) {
           {
             title:
               "Situation A: Color is used to identify user interface components or used to identify user interface component states",
-            techniques: ["G195", "G174","C40"],
+            techniques: ["G195", "G174", "C40"],
           },
           {
             title: "Situation B: Color is required to understand graphical content",

From 920af828b10d8d1cd69021d900765f7b1a18fe6f Mon Sep 17 00:00:00 2001
From: "Patrick H. Lauke" <redux@splintered.co.uk>
Date: Sat, 30 May 2026 01:09:09 +0100
Subject: [PATCH 3/4] Qualify when sufficient techniques for 1.4.11 are
 sufficient

---
 understanding/understanding.11tydata.js | 32 +++++++++++++++++++++----
 1 file changed, 28 insertions(+), 4 deletions(-)

diff --git a/understanding/understanding.11tydata.js b/understanding/understanding.11tydata.js
index 0e4633f2c5..3b284b8ff6 100644
--- a/understanding/understanding.11tydata.js
+++ b/understanding/understanding.11tydata.js
@@ -534,12 +534,36 @@ export default function (data) {
         sufficient: [
           {
             title:
-              "Situation A: Color is used to identify user interface components or used to identify user interface component states",
-            techniques: ["G195", "G174", "C40"],
+              "Situation A: Color is used to identify user interface components",
+            techniques: [
+              {
+                title: "Identifying user interface components",
+                using: ["G174"],
+                usingQuantity: "",
+              }
+            ],
+          },
+          {
+            title:
+              "Situation B: Color is used to identify a user interface component's focus state",
+            techniques: [
+              {
+                title: "Identifying a user interface component's focus state",
+                using: ["G195", "C40"],
+                usingQuantity: "",
+              }
+            ],
           },
           {
-            title: "Situation B: Color is required to understand graphical content",
-            techniques: ["G207", "G209"],
+            title:
+              "Situation C: Color is required to understand graphical content",
+            techniques: [
+              {
+                title: "Making graphical content understandable",
+                using: ["G207", "G209"],
+                usingQuantity: "",
+              }
+            ],
           },
         ],
         failure: ["F78"],

From cf99433609a8f602638bc21f60dc2e6405c65372 Mon Sep 17 00:00:00 2001
From: "Patrick H. Lauke" <redux@splintered.co.uk>
Date: Fri, 5 Jun 2026 15:47:41 +0100
Subject: [PATCH 4/4] Add precondition for test steps in G174 per @bruce-usab

---
 techniques/general/G174.html | 1 +
 1 file changed, 1 insertion(+)

diff --git a/techniques/general/G174.html b/techniques/general/G174.html
index a8df00e09c..5b4681628b 100644
--- a/techniques/general/G174.html
+++ b/techniques/general/G174.html
@@ -28,6 +28,7 @@
       </ul>
    </section><section id="tests"><h2>Tests</h2>
       <section class="procedure"><h3>Procedure</h3>
+         <p>For each user interface component on the page that should receive keyboard focus:</p>
          <ol>
             <li>Check that a link or control exists on the original page that provides access to the alternate version.</li>
             <li>Check that the link or control on the original page conforms to all success criteria for the conformance level being tested.</li>