fontend add logo (#145)

frontend/src/App.san

@@ -65,10 +65,10 @@ export default {
     color $-right-font-color
 
 .sm-text-field
-        .sm-text-field-line
-            background $-right-font-color
-        .sm-text-field-focus-line
-            background $-theme-color
+    .sm-text-field-line
+        background $-right-font-color
+    .sm-text-field-focus-line
+        background $-theme-color
 
 .sm-form-item .label
     color $-right-font-color

frontend/src/common/component/AppMenu.san

 <template>
     <div class="visual-dl-app-menu">
-        <san-appbar title="VisualDL">
+        <san-appbar title=" ">
             <san-menu slot="right">
                 <san-menu-item
                     s-for="item in items"
@@ -66,6 +66,11 @@ export default {
         font-size 24px
         flex none
         margin-right 50px
+    .sm-appbar-title
+        background url('./visualdl-logo.png') no-repeat
+        background-size cover
+        width 120px
+        height 50px
     .sm-appbar-right
         width 100%
         .sm-menu

frontend/src/graph/ui/config.san

@@ -73,6 +73,7 @@ export default {
     .config-com
         width 90%
         margin 20px auto
+        color $-right-font-color
         .config-button
             width 200px
             margin-top 20px