reintroduce custom css support

frontend/src/index.jsx

@@ -28,6 +28,12 @@ get_config().then(config => {
   if (config.auth_required) {
     ReactDOM.render(<Login {...config} />, document.getElementById('root'))
   } else {
+    if (config.css !== null) {
+      var head = document.head || document.getElementsByTagName('head')[0],
+        style = document.createElement('style');
+      head.appendChild(style);
+      style.appendChild(document.createTextNode(config.css));
+    }
     ReactDOM.render(
       <div class="gradio_page">
         {config.title ? <h1 className="title">{config.title}</h1> : false}

gradio.egg-info/requires.txt

@@ -1,15 +1,15 @@
-numpy
-scipy
-matplotlib
-pandas
-pillow
+Flask-Cors>=3.0.8
+Flask-Login
+Flask>=1.1.1
+analytics-python
 ffmpy
+flask-cachebuster
 markdown2
+matplotlib
+numpy
+pandas
+paramiko
+pillow
 pycryptodome
 requests
-paramiko
-analytics-python
-Flask>=1.1.1
-Flask-Cors>=3.0.8
-flask-cachebuster
-Flask-Login
+scipy

gradio/interface.py

@@ -239,6 +239,7 @@ class Interface:
             "description": self.description,
             "article": self.article,
             "theme": self.theme,
+            "css": self.css,
             "thumbnail": self.thumbnail,
             "allow_screenshot": self.allow_screenshot,
             "allow_flagging": self.allow_flagging,