Clear unneeded bootsrap themes files. Change Readme

assets/bs/cerulean/_bootswatch.scss

@@ -1,116 +0,0 @@
-// Cerulean 5.3.8
-// Bootswatch
-
-
-// Variables
-
-$text-shadow: 0 1px 0 rgba(0, 0, 0, .05) !default;
-
-// Mixins
-
-@mixin btn-shadow($color){
-  @include gradient-y-three-colors(tint-color($color, 16%), $color, 60%, shade-color($color, 6%));
-}
-
-@mixin btn-shadow-hover($color){
-  @include gradient-y-three-colors($color, shade-color($color, 5%), 60%, shade-color($color, 15%));
-}
-
-@mixin btn-shadow-active($color){
-  @include gradient-y-three-colors(shade-color($color, 20%), shade-color($color, 20%), 60%, shade-color($color, 30%));
-}
-
-// Tables
-
-.table-primary,
-.table-secondary,
-.table-success,
-.table-warning,
-.table-danger,
-.table-info,
-.table-light {
-  --#{$prefix}table-color: #{$body-color};
-}
-
-// Navbar
-
-.navbar {
-  @each $color, $value in $theme-colors {
-    &.bg-#{$color} {
-      @include btn-shadow($value);
-    }
-  }
-}
-
-.navbar-brand,
-.nav-link {
-  text-shadow: $text-shadow;
-}
-
-// Buttons
-
-.btn {
-  text-shadow: $text-shadow;
-}
-
-.btn-secondary,
-.btn-outline-secondary {
-  color: $gray-700;
-}
-
-@each $color, $value in $theme-colors {
-  .btn-#{$color} {
-    @include btn-shadow($value);
-  }
-
-  .btn-#{$color}:hover {
-    @include btn-shadow-hover($value);
-  }
-
-  .btn-#{$color}:active {
-    @include btn-shadow-active($value);
-  }
-
-  .btn-check:checked + .btn-#{$color} {
-    @include btn-shadow-active($value);
-  }
-}
-
-// Typography
-
-.text-secondary {
-  color: $gray-500 !important;
-}
-
-.bg-primary,
-.bg-success,
-.bg-info,
-.bg-warning,
-.bg-danger,
-.bg-dark {
-  h1,
-  h2,
-  h3,
-  h4,
-  h5,
-  h6 {
-    color: $white;
-  }
-}
-
-// Navs
-
-.dropdown-menu {
-  .dropdown-header {
-    color: $gray-600;
-  }
-}
-
-// Indicators
-
-.badge {
-  &.bg-secondary,
-  &.bg-light {
-    color: $dark;
-  }
-}

assets/bs/cerulean/_variables.scss

@@ -1,64 +0,0 @@
-// Cerulean 5.3.8
-// Bootswatch
-
-$theme: "cerulean" !default;
-
-//
-// Color system
-//
-
-$white:    #fff !default;
-$gray-100: #f8f9fa !default;
-$gray-200: #e9ecef !default;
-$gray-300: #dee2e6 !default;
-$gray-400: #ced4da !default;
-$gray-500: #adb5bd !default;
-$gray-600: #868e96 !default;
-$gray-700: #495057 !default;
-$gray-800: #343a40 !default;
-$gray-900: #212529 !default;
-$black:    #000 !default;
-
-$blue:    #033c73 !default;
-$indigo:  #6610f2 !default;
-$purple:  #6f42c1 !default;
-$pink:    #e83e8c !default;
-$red:     #c71c22 !default;
-$orange:  #fd7e14 !default;
-$yellow:  #dd5600 !default;
-$green:   #73a839 !default;
-$teal:    #20c997 !default;
-$cyan:    #2fa4e7 !default;
-
-$primary:       $cyan !default;
-$secondary:     $gray-200 !default;
-$success:       $green !default;
-$info:          $blue !default;
-$warning:       $yellow !default;
-$danger:        $red !default;
-$light:         $gray-100 !default;
-$dark:          $gray-800 !default;
-
-$min-contrast-ratio:   2.75 !default;
-
-// Body
-
-$body-color:    $gray-700 !default;
-
-// Fonts
-
-$headings-color:         $cyan !default;
-
-// Tables
-
-$table-color:            initial !default;
-
-// Dropdowns
-
-$dropdown-link-hover-color:     $white !default;
-$dropdown-link-hover-bg:        $primary !default;
-
-// Navbar
-
-$navbar-dark-color:             rgba($white, .8) !default;
-$navbar-dark-hover-color:       $white !default;