diff --git a/.vscode/settings.json b/.vscode/settings.json
index b7d6eb882..9bf4d12b5 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,4 @@
 {
-  "prettier.eslintIntegration": true
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "editor.formatOnSave": true
 }
diff --git a/build/css.js b/build/css.js
new file mode 100644
index 000000000..060506421
--- /dev/null
+++ b/build/css.js
@@ -0,0 +1,41 @@
+const fs = require('fs')
+const path = require('path')
+const {spawn} = require('child_process')
+
+const args = process.argv.slice(2)
+fs.readdir(path.join(__dirname, '../src/themes'), (err, files) => {
+    if (err) {
+        console.log('err', err)
+        return
+    }
+    files.map(async (file) => {
+        if (/\.styl/g.test(file)) {
+            var stylusCMD;
+            const stylusBin = ['node_modules', 'stylus', 'bin', 'stylus'].join(path.sep)
+            var cmdargs = [
+                stylusBin,
+                `src/themes/${file}`,
+                '-u',
+                'autoprefixer-stylus'
+            ]
+            cmdargs = cmdargs.concat(args)
+
+            stylusCMD = spawn('node', cmdargs, { shell: true })
+
+            stylusCMD.stdout.on('data', (data) => {
+                console.log(`[Stylus Build ] stdout: ${data}`);
+            });
+
+            stylusCMD.stderr.on('data', (data) => {
+                console.error(`[Stylus Build ] stderr: ${data}`);
+            });
+
+            stylusCMD.on('close', (code) => {
+                console.log(`[Stylus Build ] child process exited with code ${code}`);
+            });
+        } else {
+            return
+        }
+
+    })
+})
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index e957ff24b..3edac70db 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -236,6 +236,81 @@
         "chalk": "^2.3.1",
         "execa": "^1.0.0",
         "strong-log-transformer": "^2.0.0"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "execa": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+          "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
+          "dev": true,
+          "requires": {
+            "cross-spawn": "^6.0.0",
+            "get-stream": "^4.0.0",
+            "is-stream": "^1.1.0",
+            "npm-run-path": "^2.0.0",
+            "p-finally": "^1.0.0",
+            "signal-exit": "^3.0.0",
+            "strip-eof": "^1.0.0"
+          }
+        },
+        "npm-run-path": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+          "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
+          "dev": true,
+          "requires": {
+            "path-key": "^2.0.0"
+          }
+        },
+        "path-key": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+          "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
+          "dev": true
+        },
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        },
+        "shebang-command": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+          "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
+          "dev": true,
+          "requires": {
+            "shebang-regex": "^1.0.0"
+          }
+        },
+        "shebang-regex": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+          "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
+          "dev": true
+        },
+        "which": {
+          "version": "1.3.1",
+          "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+          "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+          "dev": true,
+          "requires": {
+            "isexe": "^2.0.0"
+          }
+        }
       }
     },
     "@lerna/clean": {
@@ -307,6 +382,81 @@
         "is-ci": "^2.0.0",
         "lodash": "^4.17.14",
         "npmlog": "^4.1.2"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "execa": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+          "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
+          "dev": true,
+          "requires": {
+            "cross-spawn": "^6.0.0",
+            "get-stream": "^4.0.0",
+            "is-stream": "^1.1.0",
+            "npm-run-path": "^2.0.0",
+            "p-finally": "^1.0.0",
+            "signal-exit": "^3.0.0",
+            "strip-eof": "^1.0.0"
+          }
+        },
+        "npm-run-path": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+          "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
+          "dev": true,
+          "requires": {
+            "path-key": "^2.0.0"
+          }
+        },
+        "path-key": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+          "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
+          "dev": true
+        },
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        },
+        "shebang-command": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+          "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
+          "dev": true,
+          "requires": {
+            "shebang-regex": "^1.0.0"
+          }
+        },
+        "shebang-regex": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+          "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
+          "dev": true
+        },
+        "which": {
+          "version": "1.3.1",
+          "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+          "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+          "dev": true,
+          "requires": {
+            "isexe": "^2.0.0"
+          }
+        }
       }
     },
     "@lerna/conventional-commits": {
@@ -3680,72 +3830,6 @@
       "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==",
       "dev": true
     },
-    "execa": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
-      "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
-      "dev": true,
-      "requires": {
-        "cross-spawn": "^6.0.0",
-        "get-stream": "^4.0.0",
-        "is-stream": "^1.1.0",
-        "npm-run-path": "^2.0.0",
-        "p-finally": "^1.0.0",
-        "signal-exit": "^3.0.0",
-        "strip-eof": "^1.0.0"
-      },
-      "dependencies": {
-        "cross-spawn": {
-          "version": "6.0.5",
-          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
-          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
-          "dev": true,
-          "requires": {
-            "nice-try": "^1.0.4",
-            "path-key": "^2.0.1",
-            "semver": "^5.5.0",
-            "shebang-command": "^1.2.0",
-            "which": "^1.2.9"
-          }
-        },
-        "path-key": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
-          "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
-          "dev": true
-        },
-        "semver": {
-          "version": "5.7.1",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
-          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
-          "dev": true
-        },
-        "shebang-command": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
-          "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
-          "dev": true,
-          "requires": {
-            "shebang-regex": "^1.0.0"
-          }
-        },
-        "shebang-regex": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
-          "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
-          "dev": true
-        },
-        "which": {
-          "version": "1.3.1",
-          "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
-          "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
-          "dev": true,
-          "requires": {
-            "isexe": "^2.0.0"
-          }
-        }
-      }
-    },
     "expand-brackets": {
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-2.1.4.tgz",
@@ -4810,9 +4894,9 @@
       "dev": true
     },
     "handlebars": {
-      "version": "4.4.3",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.4.3.tgz",
-      "integrity": "sha512-B0W4A2U1ww3q7VVthTKfh+epHx+q4mCt6iK+zEAzbMBpWQAwxCeKxEGpj/1oQTpzPXDNSOG7hmG14TsISH50yw==",
+      "version": "4.5.3",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.5.3.tgz",
+      "integrity": "sha512-3yPecJoJHK/4c6aZhSvxOyG4vJKDshV36VHp0iVCDVh7o9w2vwi3NSnL2MMPj3YdduqaBcu7cGbggJQM0br9xA==",
       "dev": true,
       "requires": {
         "neo-async": "^2.6.0",
@@ -5054,9 +5138,9 @@
       }
     },
     "https-proxy-agent": {
-      "version": "2.2.2",
-      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.2.tgz",
-      "integrity": "sha512-c8Ndjc9Bkpfx/vCJueCPy0jlP4ccCCSNDp8xwCZzPjKJUm+B+u9WX2x98Qx4n1PiMNTWo3D7KK5ifNV/yJyRzg==",
+      "version": "2.2.4",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz",
+      "integrity": "sha512-OmvfoQ53WLjtA9HeYP9RNrWMJzzAz1JGaSFr1nijg0PVR1JaD/xbJq1mdEIIlxGpXp9eSe/O2LgU9DJmTPd0Eg==",
       "dev": true,
       "requires": {
         "agent-base": "^4.3.0",
@@ -7592,23 +7676,6 @@
         }
       }
     },
-    "npm-run-path": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
-      "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
-      "dev": true,
-      "requires": {
-        "path-key": "^2.0.0"
-      },
-      "dependencies": {
-        "path-key": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
-          "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
-          "dev": true
-        }
-      }
-    },
     "npmlog": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/npmlog/-/npmlog-4.1.2.tgz",
@@ -7964,6 +8031,81 @@
         "execa": "^1.0.0",
         "lcid": "^2.0.0",
         "mem": "^4.0.0"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "execa": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+          "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
+          "dev": true,
+          "requires": {
+            "cross-spawn": "^6.0.0",
+            "get-stream": "^4.0.0",
+            "is-stream": "^1.1.0",
+            "npm-run-path": "^2.0.0",
+            "p-finally": "^1.0.0",
+            "signal-exit": "^3.0.0",
+            "strip-eof": "^1.0.0"
+          }
+        },
+        "npm-run-path": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+          "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
+          "dev": true,
+          "requires": {
+            "path-key": "^2.0.0"
+          }
+        },
+        "path-key": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+          "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
+          "dev": true
+        },
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        },
+        "shebang-command": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+          "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
+          "dev": true,
+          "requires": {
+            "shebang-regex": "^1.0.0"
+          }
+        },
+        "shebang-regex": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+          "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
+          "dev": true
+        },
+        "which": {
+          "version": "1.3.1",
+          "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+          "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+          "dev": true,
+          "requires": {
+            "isexe": "^2.0.0"
+          }
+        }
       }
     },
     "os-name": {
@@ -9576,14 +9718,14 @@
       }
     },
     "rollup-plugin-uglify": {
-      "version": "6.0.3",
-      "resolved": "https://registry.npmjs.org/rollup-plugin-uglify/-/rollup-plugin-uglify-6.0.3.tgz",
-      "integrity": "sha512-PIv3CfhZJlOG8C85N0GX+uK09TPggmAS6Nk6fpp2ELzDAV5VUhNzOURDU2j7+MwuRr0zq9IZttUTADc/jH8Gkg==",
+      "version": "6.0.4",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-uglify/-/rollup-plugin-uglify-6.0.4.tgz",
+      "integrity": "sha512-ddgqkH02klveu34TF0JqygPwZnsbhHVI6t8+hGTcYHngPkQb5MIHI0XiztXIN/d6V9j+efwHAqEL7LspSxQXGw==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
         "jest-worker": "^24.0.0",
-        "serialize-javascript": "^1.9.0",
+        "serialize-javascript": "^2.1.2",
         "uglify-js": "^3.4.9"
       }
     },
@@ -9725,9 +9867,9 @@
       }
     },
     "serialize-javascript": {
-      "version": "1.9.1",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-1.9.1.tgz",
-      "integrity": "sha512-0Vb/54WJ6k5v8sSWN09S0ora+Hnr+cX40r9F170nT+mSkaxltoE/7R3OrIdBSUv1OoiobH1QoWQbCnAO+e8J1A==",
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-2.1.2.tgz",
+      "integrity": "sha512-rs9OggEUF0V4jUSecXazOYsLfu7OGK2qIn3c7IPBiffz32XniEp/TX9Xmc9LQfK2nQ2QKHvZ2oygKUGU0lG4jQ==",
       "dev": true
     },
     "serve-index": {
@@ -11182,6 +11324,81 @@
       "dev": true,
       "requires": {
         "execa": "^1.0.0"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "execa": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+          "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
+          "dev": true,
+          "requires": {
+            "cross-spawn": "^6.0.0",
+            "get-stream": "^4.0.0",
+            "is-stream": "^1.1.0",
+            "npm-run-path": "^2.0.0",
+            "p-finally": "^1.0.0",
+            "signal-exit": "^3.0.0",
+            "strip-eof": "^1.0.0"
+          }
+        },
+        "npm-run-path": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+          "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
+          "dev": true,
+          "requires": {
+            "path-key": "^2.0.0"
+          }
+        },
+        "path-key": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+          "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
+          "dev": true
+        },
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        },
+        "shebang-command": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+          "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
+          "dev": true,
+          "requires": {
+            "shebang-regex": "^1.0.0"
+          }
+        },
+        "shebang-regex": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+          "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
+          "dev": true
+        },
+        "which": {
+          "version": "1.3.1",
+          "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+          "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+          "dev": true,
+          "requires": {
+            "isexe": "^2.0.0"
+          }
+        }
       }
     },
     "wordwrap": {
diff --git a/package.json b/package.json
index f50c73535..be63f649b 100644
--- a/package.json
+++ b/package.json
@@ -28,15 +28,15 @@
     "dev:ssr": "run-p serve:ssr watch:*",
     "lint": "eslint {src,packages} --fix",
     "test": "mocha test/*/**",
-    "css": "stylus src/themes/*.styl -u autoprefixer-stylus",
-    "watch:css": "run-p 'css -- -o themes -w'",
+    "css": "node build/css",
+    "watch:css": "npm run css -- -o themes -w",
     "watch:js": "node build/build.js",
-    "build:css:min": "mkdir lib/themes && run-p 'css -- -o lib/themes' && node build/mincss.js",
-    "build:css": "mkdir -p  themes && run-p 'css --  -o themes'",
+    "build:css:min": "mkdirp lib/themes && npm run css -- -o lib/themes && node build/mincss.js",
+    "build:css": "mkdirp themes && npm run css -- -o themes",
     "build:js": "cross-env NODE_ENV=production node build/build.js",
     "build:ssr": "node build/ssr.js",
     "build:cover": "node build/cover.js",
-    "build": "rimraf lib themes/* && run-s build:js build:css build:css:min build:ssr build:cover",
+    "build": "rimraf lib themes && run-s build:js build:css build:css:min build:ssr build:cover",
     "pub:next": "cross-env RELEASE_TAG=next sh build/release.sh",
     "pub": "sh build/release.sh",
     "postinstall": "opencollective postinstall"
@@ -61,6 +61,7 @@
     "jsdom": "^15.1.1",
     "lerna": "^3.17.0",
     "live-server": "^1.2.1",
+    "mkdirp": "^0.5.1",
     "mocha": "^5.2.0",
     "npm-run-all": "^4.1.5",
     "opencollective": "^1.0.3",
@@ -71,7 +72,7 @@
     "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-replace": "^2.2.0",
-    "rollup-plugin-uglify": "^6.0.3",
+    "rollup-plugin-uglify": "^6.0.4",
     "stylus": "^0.54.5"
   },
   "keywords": [
diff --git a/themes/.gitkeep b/themes/.gitkeep
deleted file mode 100644
index 8b1378917..000000000
--- a/themes/.gitkeep
+++ /dev/null
@@ -1 +0,0 @@
-