diff --git a/assets/font-arial.sass b/assets/font-arial.sass
index ed5e68a..f345eb0 100644
--- a/assets/font-arial.sass
+++ b/assets/font-arial.sass
@@ -1,3 +1,8 @@
 /* Шрифт: Arial */
+:root
+  --font-main: 'Arial', sans-serif
+  --font-alt: var(--font-main)
+  --font-alt-text-letter-spacing: normal
+
 body, input, select, button, textarea
-  font-family: 'Arial', sans-serif
+  font-family: var(--font-main)
diff --git a/assets/font-roboto.sass b/assets/font-roboto.sass
index 3fca9c5..3029ad5 100644
--- a/assets/font-roboto.sass
+++ b/assets/font-roboto.sass
@@ -35,5 +35,10 @@
   src: local('Roboto Medium'), local('Roboto-Medium'), url(https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc4.woff2) format('woff2')
   unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD
 
+:root
+  --font-main: 'Roboto', sans-serif
+  --font-alt: var(--font-main)
+  --font-alt-text-letter-spacing: normal
+
 body, input, select, button, textarea
-  font-family: 'Roboto', sans-serif
+  font-family: var(--font-main)
diff --git a/assets/font-roboto_condensed.sass b/assets/font-roboto_condensed.sass
index 1ee786e..a140ee3 100644
--- a/assets/font-roboto_condensed.sass
+++ b/assets/font-roboto_condensed.sass
@@ -31,5 +31,10 @@
   src: local('Roboto Condensed Bold'), local('RobotoCondensed-Bold'), url(https://fonts.gstatic.com/s/robotocondensed/v16/ieVi2ZhZI2eCN5jzbjEETS9weq8-32meGCQYbw.woff2) format('woff2')
   unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD
 
+:root
+  --font-main: 'Roboto Condensed', sans-serif
+  --font-alt: var(--font-main)
+  --font-alt-text-letter-spacing: normal
+
 body, input, select, button, textarea
-  font-family: 'Roboto Condensed', sans-serif
+  font-family: var(--font-main)
diff --git a/assets/tests/td-tabs.sass b/assets/tests/td-tabs.sass
index 7cd83bc..c32807b 100644
--- a/assets/tests/td-tabs.sass
+++ b/assets/tests/td-tabs.sass
@@ -3,7 +3,7 @@
  */
 $break_vertical: 960px
 
-.b-tabs
+.u-tabs
   // Контейнер
   &.--vertical
     @media (min-width: $break_vertical)
@@ -12,7 +12,7 @@ $break_vertical: 960px
       border-radius: $border-rounded
 
       // Список переключателей
-      .b-tabs_list
+      & > div:not([data-tab])
         flex-direction: column
         flex-shrink: 0
         width: 200px
@@ -20,7 +20,7 @@ $break_vertical: 960px
         border-right: 1px solid $color-border
 
       // Переключатель
-      .b-tabs_switch
+      [data-tab-switch]
         padding: 8px 16px
         margin: 0
         border: 0
@@ -28,19 +28,19 @@ $break_vertical: 960px
         text-align: left
 
       // Содержимое вкладки
-      .b-tabs_panel
+      [data-tab]
         flex-grow: 1
         padding: 18px 24px
 
   // Список переключателей
-  .b-tabs_list
+  & > div:not([data-tab])
     display: flex
     flex-direction: row
     flex-wrap: nowrap
     overflow-y: auto
 
   // Переключатель
-  .b-tabs_switch
+  [data-tab-switch]
     display: block
     flex-shrink: 0
     min-width: 148px
@@ -70,12 +70,12 @@ $break_vertical: 960px
       cursor: default
 
   // Содержимое вкладки
-  .b-tabs_panel
+  [data-tab]
     padding: 12px 8px
 
   // Анимация переключения
   &.--ripple
-    .b-tabs_switch
+    [data-tab-switch]
       position: relative
       overflow: hidden
       -webkit-tap-highlight-color: rgba(0,0,0,0)
diff --git a/config/theme_files.json b/config/theme_files.json
index cb75b11..428aed8 100644
--- a/config/theme_files.json
+++ b/config/theme_files.json
@@ -20,12 +20,12 @@
   {
     "url": "font-arial.sass",
     "cat": "font",
-    "checked": true
+    "checked": false
   },
   {
     "url": "font-roboto.sass",
     "cat": "font",
-    "checked": false
+    "checked": true
   },
   {
     "url": "font-roboto_condensed.sass",