[gnome-builder] Adwaita.xml: add styling for patches

[Christian Hergert <chergert src gnome org>]

commit 4333e2b3716e866f86a5bb1fa95954a6b7acb721
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jan 24 12:21:40 2022 -0800

    Adwaita.xml: add styling for patches

 data/style-schemes/Adwaita-dark.style-scheme.xml | 7 +++++++
 data/style-schemes/Adwaita.style-scheme.xml      | 7 +++++++
 2 files changed, 14 insertions(+)
---
diff --git a/data/style-schemes/Adwaita-dark.style-scheme.xml 
b/data/style-schemes/Adwaita-dark.style-scheme.xml
index 278aa2d57..411588704 100644
--- a/data/style-schemes/Adwaita-dark.style-scheme.xml
+++ b/data/style-schemes/Adwaita-dark.style-scheme.xml
@@ -144,6 +144,13 @@
   <style name="css:type-selector"          foreground="teal_5" bold="true"/>
   <style name="css:vendor-specific"        foreground="yellow_6"/>
 
+  <!-- Diff -->
+  <style name="diff:added-line"            foreground="teal_3"/>
+  <style name="diff:changed-line"          foreground="orange_3"/>
+  <style name="diff:diff-file"             foreground="violet_2"/>
+  <style name="diff:location"              foreground="yellow_4"/>
+  <style name="diff:removed-line"          foreground="red_1"/>
+
   <!-- Go -->
   <style name="go:printf"                  foreground="violet_4"/>
 
diff --git a/data/style-schemes/Adwaita.style-scheme.xml b/data/style-schemes/Adwaita.style-scheme.xml
index 16c911e34..89bbecaeb 100644
--- a/data/style-schemes/Adwaita.style-scheme.xml
+++ b/data/style-schemes/Adwaita.style-scheme.xml
@@ -141,6 +141,13 @@
   <style name="css:type-selector"          foreground="teal_5" bold="true"/>
   <style name="css:vendor-specific"        foreground="yellow_6"/>
 
+  <!-- Diff -->
+  <style name="diff:added-line"            foreground="teal_4"/>
+  <style name="diff:changed-line"          foreground="orange_4"/>
+  <style name="diff:diff-file"             foreground="violet_4"/>
+  <style name="diff:location"              foreground="yellow_6"/>
+  <style name="diff:removed-line"          foreground="red_1"/>
+
   <!-- Go -->
   <style name="go:printf"                  foreground="violet_4"/>