diff --git a/public/lang_icons/diff.svg b/public/lang_icons/diff.svg
new file mode 100644
index 0000000..f8285e4
--- /dev/null
+++ b/public/lang_icons/diff.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" class="icon" viewBox="0 0 1024 1024"><path fill="#59c75d" d="M639.907 57.407C632.626 50.126 622.797 46 612.481 46H201.333c-21.48 0-38.833 17.354-38.833 38.833v854.334c0 21.48 17.354 38.833 38.833 38.833h621.334c21.48 0 38.833-17.354 38.833-38.833V295.14c0-10.315-4.126-20.145-11.407-27.426zm17.718 669.39c0 4.611-4.126 8.495-9.102 8.495H375.477c-4.976 0-9.102-3.884-9.102-8.495v-50.969c0-4.611 4.126-8.495 9.102-8.495h273.046c4.976 0 9.102 3.884 9.102 8.495zm0-266.98c0 4.612-4.126 8.496-9.102 8.496H545.98v103.03c0 4.732-3.762 8.615-8.495 8.615h-50.968c-4.612 0-8.495-3.883-8.495-8.616v-103.03H375.477c-4.976 0-9.102-3.883-9.102-8.494v-50.969c0-4.733 4.126-8.495 9.102-8.495H478.02v-103.03c0-4.732 3.883-8.616 8.495-8.616h50.968c4.733 0 8.495 3.884 8.495 8.616v103.03h102.544c4.976 0 9.102 3.762 9.102 8.495z"/></svg>
\ No newline at end of file
diff --git a/src/components/Background/Window/modes.js b/src/components/Background/Window/modes.js
index 0ebbfc8..f3bfe1b 100644
--- a/src/components/Background/Window/modes.js
+++ b/src/components/Background/Window/modes.js
@@ -1,6 +1,7 @@
 import "prismjs/components/prism-core";
 import "prismjs/components/prism-bash";
 import "prismjs/components/prism-clike";
+import "prismjs/components/prism-diff";
 import "prismjs/components/prism-javascript";
 import "prismjs/components/prism-python";
 import "prismjs/components/prism-dart";
@@ -26,6 +27,7 @@ require("prismjs/components/prism-php");
 export const LANGUAGE = {
   C: "c",
   "C++": "cpp",
+  "Diff": "diff",
   Java: "java",
   Bash: "bash",
   "Plain Text": "plaintext",
@@ -51,6 +53,7 @@ export const LANGUAGE = {
 export const EXTENTION = {
   c: "c",
   cpp: "cpp",
+  diff: "diff",
   java: "java",
   bash: "sh",
   plaintext: "",