diff --git a/src/core/components/models.jsx b/src/core/components/models.jsx
index c61ae0c9..86c3256d 100644
--- a/src/core/components/models.jsx
+++ b/src/core/components/models.jsx
@@ -24,8 +24,8 @@ export default class Models extends Component {
     return <section className={ showModels ? "models is-open" : "models"}>
       <h4 onClick={() => layoutActions.show("models", !showModels)}>
         <span>Models</span>
-        <svg width="20" height="20">
-          <use xlinkHref="#large-arrow" />
+        <svg className="arrow" width="20" height="20">
+          <use xlinkHref={showModels ? "#large-arrow-down" : "#large-arrow"} />
         </svg>
       </h4>
       <Collapse isOpened={showModels}>
diff --git a/src/plugins/add-plugin.md b/src/plugins/add-plugin.md
index 7a77cb30..2e2d52e1 100644
--- a/src/plugins/add-plugin.md
+++ b/src/plugins/add-plugin.md
@@ -20,7 +20,7 @@ SwaggerUI({
 })
 ```
 
-Or if you're updating the core plugins.. you'll add it to [src/js/bootstrap-plugin](https://github.com/SmartBear/swagger-ux/blob/master/src/js/bootstrap-plugin.js)
+Or if you're updating the core plugins.. you'll add it to the base preset: [src/core/presets/base.js](https://github.com/swagger-api/swagger-ui/blob/master/src/core/presets/base.js)
 
 Each Plugin is a function that returns an object. That object will get merged with the `system` and later bound to the state.
 Here is an example of each `type`
diff --git a/src/plugins/topbar/topbar.jsx b/src/plugins/topbar/topbar.jsx
index fd3654bb..ec9db730 100644
--- a/src/plugins/topbar/topbar.jsx
+++ b/src/plugins/topbar/topbar.jsx
@@ -130,7 +130,7 @@ export default class Topbar extends React.Component {
         <div className="wrapper">
           <div className="topbar-wrapper">
             <Link href="#" title="Swagger UX">
-              <img height="30" width="30" src={ Logo } alt="Swagger UX"/>
+              <img height="30" width="30" src={ Logo } alt="Swagger UI"/>
               <span>swagger</span>
             </Link>
             <form className="download-url-wrapper" onSubmit={formOnSubmit}>