Clear unneeded bootsrap themes files. Change Readme

assets/bs/cosmo/_bootswatch.scss

@@ -1,53 +0,0 @@
-// Cosmo 5.3.8
-// Bootswatch
-
-
-// Variables
-
-$web-font-path: "https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;700&display=swap" !default;
-@if $web-font-path {
-  @import url("#{$web-font-path}");
-}
-
-// Typography
-
-body {
-  -webkit-font-smoothing: antialiased;
-}
-
-// Tables
-
-.table-primary,
-.table-secondary,
-.table-success,
-.table-warning,
-.table-danger,
-.table-info,
-.table-light {
-  --#{$prefix}table-color: #{$body-color};
-}
-
-// Forms
-
-.form-range::-moz-range-thumb {
-  border-radius: inherit;
-}
-
-// Indicators
-
-.badge {
-  &.bg-light {
-    color: $dark;
-  }
-}
-
-// Progress bars
-
-.progress {
-  @include box-shadow(none);
-
-  .progress-bar {
-    font-size: 8px;
-    line-height: 8px;
-  }
-}

assets/bs/cosmo/_variables.scss

@@ -1,73 +0,0 @@
-// Cosmo 5.3.8
-// Bootswatch
-
-$theme: "cosmo" !default;
-
-//
-// Color system
-//
-
-$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: #373a3c !default;
-$gray-900: #212529 !default;
-$black:    #000 !default;
-
-$blue:    #2780e3 !default;
-$indigo:  #6610f2 !default;
-$purple:  #613d7c !default;
-$pink:    #e83e8c !default;
-$red:     #ff0039 !default;
-$orange:  #f0ad4e !default;
-$yellow:  #ff7518 !default;
-$green:   #3fb618 !default;
-$teal:    #20c997 !default;
-$cyan:    #9954bb !default;
-
-$primary:       $blue !default;
-$secondary:     $gray-800 !default;
-$success:       $green !default;
-$info:          $cyan !default;
-$warning:       $yellow !default;
-$danger:        $red !default;
-$light:         $gray-100 !default;
-$dark:          $gray-800 !default;
-
-$min-contrast-ratio:   2.6 !default;
-
-// Options
-
-$enable-rounded: false !default;
-
-// Body
-
-$body-color:    $gray-800 !default;
-
-// Fonts
-
-// stylelint-disable-next-line value-keyword-case
-$font-family-sans-serif:    "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol" !default;
-$headings-font-weight:      400 !default;
-
-// Tables
-
-$table-color:               initial !default;
-
-// Navbar
-
-$navbar-dark-hover-color:       rgba($white, 1) !default;
-$navbar-light-hover-color:      rgba($black, .9) !default;
-
-// Alerts
-
-$alert-border-width:            0 !default;
-
-// Progress bars
-
-$progress-height:               .5rem !default;