diff --git a/vendor/assets/stylesheets/bootswatch/yeti/_bootswatch.scss b/vendor/assets/stylesheets/bootswatch/yeti/_bootswatch.scss
index 2b0b0b4..395f32f 100644
--- a/vendor/assets/stylesheets/bootswatch/yeti/_bootswatch.scss
+++ b/vendor/assets/stylesheets/bootswatch/yeti/_bootswatch.scss
@@ -1,4 +1,4 @@
-// Yeti 3.2.0
+// Yeti 3.3.4
 // Bootswatch
 // -----------------------------------------------------
 
@@ -246,6 +246,11 @@ label,
   font-weight: normal;
 }
 
+input[type="radio"],
+input[type="checkbox"] {
+  margin-top: 1px;
+}
+
 // Navs =======================================================================
 
 .nav {
diff --git a/vendor/assets/stylesheets/bootswatch/yeti/_variables.scss b/vendor/assets/stylesheets/bootswatch/yeti/_variables.scss
index 1bcfcf7..58b4335 100644
--- a/vendor/assets/stylesheets/bootswatch/yeti/_variables.scss
+++ b/vendor/assets/stylesheets/bootswatch/yeti/_variables.scss
@@ -1,4 +1,4 @@
-// Yeti 3.2.0
+// Yeti 3.3.4
 // Variables
 // --------------------------------------------------
 
@@ -7,11 +7,12 @@
 //
 //## Gray and brand colors for use across Bootstrap.
 
+$gray-base:              #000 !default;
+$gray-darker:            lighten($gray-base, 13.5%) !default; // #222
+$gray-dark:              lighten($gray-base, 20%) !default;   // #333
 $gray:                   #6f6f6f !default; // #555
-$gray-darker:            lighten(#000, 13.5%) !default; // #222
-$gray-dark:              lighten(#000, 20%) !default;   // #333
-$gray-light:             lighten(#000, 60%) !default;   // #999
-$gray-lighter:           lighten(#000, 93.5%) !default; // #eee
+$gray-light:             lighten($gray-base, 60%) !default;   // #999
+$gray-lighter:           lighten($gray-base, 93.5%) !default; // #eee
 
 $brand-primary:         #008cba !default;
 $brand-success:         #43ac6a !default;
@@ -32,7 +33,9 @@ $text-color:            $gray-darker !default;
 //** Global textual link color.
 $link-color:            $brand-primary !default;
 //** Link hover color set via `darken()` function.
-$link-hover-color:      darken($link-color, 15%) !default;
+$link-hover-color:      $link-color !default;
+//** Link hover decoration.
+$link-hover-decoration: underline !default;
 
 
 //== Typography
@@ -57,7 +60,7 @@ $font-size-h5:            $font-size-base !default;
 $font-size-h6:            ceil(($font-size-base * 0.85)) !default; // ~12px
 
 //** Unit-less `line-height` for use in components like buttons.
-$line-height-base:        1.428571429 !default; // 20/14
+$line-height-base:        1.4 !default;
 //** Computed "line-height" (`font-size` * `line-height`) for use with `margin`, `padding`, etc.
 $line-height-computed:    floor(($font-size-base * $line-height-base)) !default; // ~20px
 
@@ -95,7 +98,7 @@ $padding-small-horizontal:  12px !default;
 $padding-xs-vertical:       4px !default;
 $padding-xs-horizontal:     6px !default;
 
-$line-height-large:         1.33 !default;
+$line-height-large:         1.3333333 !default; // extra decimals for Win 8.1 Chrome
 $line-height-small:         1.5 !default;
 
 $border-radius-base:        0 !default;
@@ -142,7 +145,7 @@ $btn-font-weight:                normal !default;
 
 $btn-default-color:              $gray-dark !default;
 $btn-default-bg:                 #e7e7e7 !default;
-$btn-default-border:             #dadada !default;
+$btn-default-border:             #ccc !default;
 
 $btn-primary-color:              #fff !default;
 $btn-primary-bg:                 $brand-primary !default;
@@ -180,8 +183,16 @@ $input-bg-disabled:              $gray-lighter !default;
 $input-color:                    $gray !default;
 //** `<input>` border color
 $input-border:                   #ccc !default;
-//** `<input>` border radius
+
+// TODO: Rename `@input-border-radius` to `@input-border-radius-base` in v4
+//** Default `.form-control` border radius
+// This has no effect on `<select>`s in some browsers, due to the limited stylability of `<select>`s in CSS.
 $input-border-radius:            $border-radius-base !default;
+//** Large `.form-control` border radius
+$input-border-radius-large:      $border-radius-large !default;
+//** Small `.form-control` border radius
+$input-border-radius-small:      $border-radius-small !default;
+
 //** Border color for inputs on focus
 $input-border-focus:             #66afe9 !default;
 
@@ -195,6 +206,9 @@ $input-height-large:             (ceil($font-size-large * $line-height-large) +
 //** Small `.form-control` height
 $input-height-small:             (floor($font-size-small * $line-height-small) + ($padding-small-vertical * 2) + 2) !default;
 
+//** `.form-group` margin
+$form-group-margin-bottom:       15px !default;
+
 $legend-color:                   $gray-dark !default;
 $legend-border-color:            #e5e5e5 !default;
 
@@ -203,6 +217,9 @@ $input-group-addon-bg:           $gray-lighter !default;
 //** Border color for textual input addons
 $input-group-addon-border-color: $input-border !default;
 
+//** Disabled cursor for form controls and buttons.
+$cursor-disabled:                not-allowed !default;
+
 
 //== Dropdowns
 //
@@ -314,17 +331,17 @@ $grid-float-breakpoint-max: ($grid-float-breakpoint - 1) !default;
 //## Define the maximum width of `.container` for different screen sizes.
 
 // Small screen / tablet
-$container-tablet:             ((720px + $grid-gutter-width)) !default;
+$container-tablet:             (720px + $grid-gutter-width) !default;
 //** For `@screen-sm-min` and up.
 $container-sm:                 $container-tablet !default;
 
 // Medium screen / desktop
-$container-desktop:            ((940px + $grid-gutter-width)) !default;
+$container-desktop:            (940px + $grid-gutter-width) !default;
 //** For `@screen-md-min` and up.
 $container-md:                 $container-desktop !default;
 
 // Large screen / wide desktop
-$container-large-desktop:      ((1140px + $grid-gutter-width)) !default;
+$container-large-desktop:      (1140px + $grid-gutter-width) !default;
 //** For `@screen-lg-min` and up.
 $container-lg:                 $container-large-desktop !default;
 
@@ -402,18 +419,16 @@ $nav-link-hover-bg:                         $gray-lighter !default;
 $nav-disabled-link-color:                   $gray-light !default;
 $nav-disabled-link-hover-color:             $gray-light !default;
 
-$nav-open-link-hover-color:                 #fff !default;
-
 //== Tabs
-$nav-tabs-border-color:                     #ddd !default;
+$nav-tabs-border-color:                     $table-border-color !default;
 
 $nav-tabs-link-hover-border-color:          $gray-lighter !default;
 
 $nav-tabs-active-link-hover-bg:             $body-bg !default;
 $nav-tabs-active-link-hover-color:          $gray !default;
-$nav-tabs-active-link-hover-border-color:   #ddd !default;
+$nav-tabs-active-link-hover-border-color:   $table-border-color !default;
 
-$nav-tabs-justified-link-border-color:            #ddd !default;
+$nav-tabs-justified-link-border-color:            $table-border-color !default;
 $nav-tabs-justified-active-link-border-color:     $body-bg !default;
 
 //== Pills
@@ -627,6 +642,8 @@ $alert-danger-border:         $state-danger-border !default;
 $progress-bg:                 #f5f5f5 !default;
 //** Progress bar text color
 $progress-bar-color:          #fff !default;
+//** Variable for setting rounded corners on progress bar.
+$progress-border-radius:      $border-radius-base !default;
 
 //** Default progress bar color
 $progress-bar-bg:             $brand-primary !default;
@@ -647,7 +664,7 @@ $progress-bar-info-bg:        $brand-info !default;
 //** Background color on `.list-group-item`
 $list-group-bg:                 #fff !default;
 //** `.list-group-item` border color
-$list-group-border:             #ddd !default;
+$list-group-border:             $table-border-color !default;
 //** List group border radius
 $list-group-border-radius:      $border-radius-base !default;
 
@@ -685,11 +702,11 @@ $panel-footer-padding:        $panel-heading-padding !default;
 $panel-border-radius:         $border-radius-base !default;
 
 //** Border color for elements within panels
-$panel-inner-border:          #ddd !default;
+$panel-inner-border:          $table-border-color !default;
 $panel-footer-bg:             #f5f5f5 !default;
 
 $panel-default-text:          $gray-dark !default;
-$panel-default-border:        #ddd !default;
+$panel-default-border:        $table-border-color !default;
 $panel-default-heading-bg:    #f5f5f5 !default;
 
 $panel-primary-text:          #fff !default;
@@ -722,7 +739,7 @@ $thumbnail-padding:           4px !default;
 //** Thumbnail background color
 $thumbnail-bg:                $body-bg !default;
 //** Thumbnail border color
-$thumbnail-border:            #ddd !default;
+$thumbnail-border:            $table-border-color !default;
 //** Thumbnail border radius
 $thumbnail-border-radius:     $border-radius-base !default;
 
@@ -744,10 +761,10 @@ $well-border:                 darken($well-bg, 7%) !default;
 //
 //##
 
-$badge-color:                 #777 !default;
+$badge-color:                 #fff !default;
 //** Linked badge text color on hover
 $badge-link-hover-color:      #fff !default;
-$badge-bg:                    $btn-default-bg !default;
+$badge-bg:                    $btn-primary-bg !default;
 
 //** Badge text color in active nav link
 $badge-active-color:          $link-color !default;
@@ -833,13 +850,11 @@ $headings-small-color:        $gray-light !default;
 $blockquote-small-color:      $gray !default;
 //** Blockquote font size
 $blockquote-font-size:        ($font-size-base * 1.25) !default;
-//** Horizontal line color.
-$hr-border:                   #ddd !default;
 //** Blockquote border color
-$blockquote-border-color:     $hr-border !default;
+$blockquote-border-color:     $table-border-color !default;
 //** Page header border color
-$page-header-border-color:    $hr-border !default;
+$page-header-border-color:    $table-border-color !default;
 //** Width of horizontal description list titles
 $dl-horizontal-offset:        $component-offset-horizontal !default;
-
-
+//** Horizontal line color.
+$hr-border:                   $table-border-color !default;