diff --git a/package.json b/package.json
index dfd2524e81..a79f7b101a 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,7 @@
     "postcss-import": "^14.0.2",
     "postcss-loader": "^6.1.1",
     "postcss-media-minmax": "https://github.com/andersk/postcss-media-minmax.git#01239f17f4a9872ace1dd133cee526a7de4ac9f5",
+    "postcss-mixins": "^9.0.1",
     "postcss-nested": "^5.0.0",
     "postcss-prefixwrap": "^1.24.0",
     "postcss-simple-vars": "^6.0.0",
diff --git a/stylelint.config.js b/stylelint.config.js
index 614fe9416d..5e8673d3d2 100644
--- a/stylelint.config.js
+++ b/stylelint.config.js
@@ -4,7 +4,7 @@ module.exports = {
     extends: ["stylelint-config-standard", "stylelint-config-prettier"],
     rules: {
         // Add some exceptions for recommended rules
-        "at-rule-no-unknown": [true, {ignoreAtRules: ["extend"]}],
+        "at-rule-no-unknown": [true, {ignoreAtRules: ["extend", "define-mixin", "mixin"]}],
         "font-family-no-missing-generic-family-keyword": [
             true,
             {ignoreFontFamilies: ["FontAwesome"]},
diff --git a/version.py b/version.py
index fad3b46a67..e6ccd36425 100644
--- a/version.py
+++ b/version.py
@@ -48,4 +48,4 @@ API_FEATURE_LEVEL = 111
 #   historical commits sharing the same major version, in which case a
 #   minor version bump suffices.
 
-PROVISION_VERSION = "168.1"
+PROVISION_VERSION = "168.2"
diff --git a/yarn.lock b/yarn.lock
index cfd13d2786..6bf352874b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2964,6 +2964,11 @@ camel-case@^4.1.2:
     pascal-case "^3.1.2"
     tslib "^2.0.3"
 
+camelcase-css@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/camelcase-css/-/camelcase-css-2.0.1.tgz#ee978f6947914cc30c6b44741b6ed1df7f043fd5"
+  integrity sha512-QOSvevhslijgYwRx6Rv7zKdMF8lbRmx+uQGx2+vDc+KI/eBnsy9kit5aj23AgGu3pa4t9AgwbnXWqS+iOY+2aA==
+
 camelcase-keys@^6.2.2:
   version "6.2.2"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-6.2.2.tgz#5e755d6ba51aa223ec7d3d52f25778210f9dc3c0"
@@ -8276,6 +8281,14 @@ postcss-import@^14.0.2:
     read-cache "^1.0.0"
     resolve "^1.1.7"
 
+postcss-js@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-js/-/postcss-js-3.0.3.tgz#2f0bd370a2e8599d45439f6970403b5873abda33"
+  integrity sha512-gWnoWQXKFw65Hk/mi2+WTQTHdPD5UJdDXZmX073EY/B3BWnYjO4F4t0VneTCnCGQ5E5GsCdMkzPaTXwl3r5dJw==
+  dependencies:
+    camelcase-css "^2.0.1"
+    postcss "^8.1.6"
+
 postcss-loader@^6.1.1:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/postcss-loader/-/postcss-loader-6.2.1.tgz#0895f7346b1702103d30fdc66e4d494a93c008ef"
@@ -8346,6 +8359,16 @@ postcss-minify-selectors@^5.1.0:
     alphanum-sort "^1.0.2"
     postcss-selector-parser "^6.0.5"
 
+postcss-mixins@^9.0.1:
+  version "9.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-mixins/-/postcss-mixins-9.0.1.tgz#eb00f8073b6d37881b10029e3c0ceea35f7d7576"
+  integrity sha512-4gFBr/JxMhSOlzHFfUDXV3vU0FNhDwIx/rzuvjvep/LAysJW9zcpeVxxNwBu1orM7STsTB9ZRULe44fD9lKWrA==
+  dependencies:
+    fast-glob "^3.2.7"
+    postcss-js "^3.0.3"
+    postcss-simple-vars "^6.0.3"
+    sugarss "^4.0.1"
+
 postcss-modules-extract-imports@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/postcss-modules-extract-imports/-/postcss-modules-extract-imports-3.0.0.tgz#cda1f047c0ae80c97dbe28c3e76a43b88025741d"
@@ -8502,7 +8525,7 @@ postcss-selector-parser@^6.0.2, postcss-selector-parser@^6.0.4, postcss-selector
     cssesc "^3.0.0"
     util-deprecate "^1.0.2"
 
-postcss-simple-vars@^6.0.0:
+postcss-simple-vars@^6.0.0, postcss-simple-vars@^6.0.3:
   version "6.0.3"
   resolved "https://registry.yarnpkg.com/postcss-simple-vars/-/postcss-simple-vars-6.0.3.tgz#e66516c7fe980da3498f4a8ad400b9c53861806c"
   integrity sha512-fkNn4Zio8vN4vIig9IFdb8lVlxWnYR769RgvxCM6YWlFKie/nQaOcaMMMFz/s4gsfHW4/5bJW+i57zD67mQU7g==
@@ -8541,7 +8564,7 @@ postcss-value-parser@^4.0.0, postcss-value-parser@^4.0.2, postcss-value-parser@^
     picocolors "^0.2.1"
     source-map "^0.6.1"
 
-postcss@^8.0.3, postcss@^8.1.10, postcss@^8.2.15, postcss@^8.3.11, postcss@^8.3.5:
+postcss@^8.0.3, postcss@^8.1.10, postcss@^8.1.6, postcss@^8.2.15, postcss@^8.3.11, postcss@^8.3.5:
   version "8.4.4"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.4.tgz#d53d4ec6a75fd62557a66bb41978bf47ff0c2869"
   integrity sha512-joU6fBsN6EIer28Lj6GDFoC/5yOZzLCfn0zHAn/MYXI7aPt4m4hK5KC5ovEZXy+lnCjmYIbQWngvju2ddyEr8Q==
@@ -9984,6 +10007,11 @@ stylelint@^14.0.1:
     v8-compile-cache "^2.3.0"
     write-file-atomic "^3.0.3"
 
+sugarss@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/sugarss/-/sugarss-4.0.1.tgz#128a783ed71ee0fc3b489ce1f7d5a89bc1e24383"
+  integrity sha512-WCjS5NfuVJjkQzK10s8WOBY+hhDxxNt/N6ZaGwxFZ+wN3/lKKFSaaKUNecULcTTvE4urLcKaZFQD8vO0mOZujw==
+
 supercluster@^7.0.0:
   version "7.1.4"
   resolved "https://registry.yarnpkg.com/supercluster/-/supercluster-7.1.4.tgz#6762aabfd985d3390b49f13b815567d5116a828a"