diff --git a/angular.json b/angular.json
index c7aabe5..d2e80bf 100644
--- a/angular.json
+++ b/angular.json
@@ -24,6 +24,7 @@
               "src/assets"
             ],
             "styles": [
+              "./node_modules/@angular/material/prebuilt-themes/purple-green.css",
               "src/styles.css"
             ],
             "scripts": []
diff --git a/package-lock.json b/package-lock.json
index 0cec44e..978544b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13214,8 +13214,7 @@
             "ansi-regex": {
               "version": "2.1.1",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "aproba": {
               "version": "1.2.0",
@@ -13632,8 +13631,7 @@
             "safe-buffer": {
               "version": "5.1.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "safer-buffer": {
               "version": "2.1.2",
@@ -13689,7 +13687,6 @@
               "version": "3.0.1",
               "bundled": true,
               "dev": true,
-              "optional": true,
               "requires": {
                 "ansi-regex": "^2.0.0"
               }
@@ -13733,14 +13730,12 @@
             "wrappy": {
               "version": "1.0.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "yallist": {
               "version": "3.1.1",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             }
           }
         },