Add bootwatch's "lux" theme override

assets/css/_bootswatch.scss

@@ -0,0 +1,184 @@
+// Lux 5.1.3
+// Bootswatch
+
+
+// Variables
+
+$web-font-path: "https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@400;600&display=swap" !default;
+@if $web-font-path {
+  @import url($web-font-path);
+}
+
+// Navbar
+
+.navbar {
+  font-size: $font-size-sm;
+  text-transform: uppercase;
+  font-weight: 600;
+
+  &-nav {
+    .nav-link {
+      padding-top: .715rem;
+      padding-bottom: .715rem;
+    }
+  }
+
+  &-brand {
+    margin-right: 2rem;
+  }
+}
+
+.bg-primary {
+  background-color: theme-color("primary") !important;
+}
+
+.bg-light {
+  border: 1px solid rgba(0, 0, 0, .1);
+
+  &.navbar-fixed-top {
+    border-width: 0 0 1px;
+  }
+
+  &.navbar-bottom-top {
+    border-width: 1px 0 0;
+  }
+}
+
+.nav-item {
+  margin-right: 2rem;
+}
+
+// Buttons
+
+.btn {
+  font-size: $font-size-sm;
+  text-transform: uppercase;
+
+  &-sm {
+    font-size: 10px;
+  }
+
+  &-warning {
+    &,
+    &:hover,
+    &:not([disabled]):not(.disabled):active,
+    &:focus {
+      color: $white;
+    }
+  }
+}
+
+.btn-outline-secondary {
+  border-color: $gray-600;
+  color: $gray-600;
+
+  &:not([disabled]):not(.disabled):hover,
+  &:not([disabled]):not(.disabled):focus,
+  &:not([disabled]):not(.disabled):active {
+    background-color: $gray-400;
+    border-color: $gray-400;
+    color: $white;
+  }
+
+  &:not([disabled]):not(.disabled):focus {
+    box-shadow: 0 0 0 .2rem rgba($gray-400, .5);
+  }
+}
+
+[class*="btn-outline-"] {
+  border-width: 2px;
+}
+
+.border-secondary {
+  border: 1px solid $gray-400 !important;
+}
+
+// Typography
+
+body {
+  font-weight: 200;
+  letter-spacing: 1px;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  text-transform: uppercase;
+  letter-spacing: 3px;
+}
+
+.text-secondary {
+  color: $body-color !important;
+}
+
+// Tables
+
+th {
+  font-size: $font-size-sm;
+  text-transform: uppercase;
+}
+
+.table {
+  th,
+  td {
+    padding: 1.5rem;
+  }
+
+  &-sm {
+    th,
+    td {
+      padding: .75rem;
+    }
+  }
+}
+
+// Navs
+
+.dropdown-menu {
+  font-size: $font-size-sm;
+  text-transform: none;
+}
+
+// Indicators
+
+.badge {
+  padding-top: .28rem;
+
+  &-pill {
+    border-radius: 10rem;
+  }
+
+  &.bg-secondary,
+  &.bg-light {
+    color: $dark;
+  }
+}
+
+// Containers
+
+.list-group-item {
+  h1,
+  h2,
+  h3,
+  h4,
+  h5,
+  h6,
+  .h1,
+  .h2,
+  .h3,
+  .h4,
+  .h5,
+  .h6 {
+    color: inherit;
+  }
+}
+
+.card {
+  &-title,
+  &-header {
+    color: inherit;
+  }
+}

assets/css/_variables.scss

@@ -0,0 +1,103 @@
+// Lux 5.1.3
+// Bootswatch
+
+$theme: "lux" !default;
+
+//
+// Color system
+//
+
+$white:    #fff !default;
+$gray-100: #f8f9fa !default;
+$gray-200: #f7f7f9 !default;
+$gray-300: #eceeef !default;
+$gray-400: #ced4da !default;
+$gray-500: #adb5bd !default;
+$gray-600: #919aa1 !default;
+$gray-700: #55595c !default;
+$gray-800: #343a40 !default;
+$gray-900: #1a1a1a !default;
+$black:    #000 !default;
+
+$blue:    #007bff !default;
+$indigo:  #6610f2 !default;
+$purple:  #6f42c1 !default;
+$pink:    #e83e8c !default;
+$red:     #d9534f !default;
+$orange:  #fd7e14 !default;
+$yellow:  #f0ad4e !default;
+$green:   #4bbf73 !default;
+$teal:    #20c997 !default;
+$cyan:    #1f9bcf !default;
+
+$primary:       $gray-900 !default;
+$secondary:     $white !default;
+$success:       $green !default;
+$info:          $cyan !default;
+$warning:       $yellow !default;
+$danger:        $red !default;
+$light:         $white !default;
+$dark:          $gray-800 !default;
+
+$min-contrast-ratio:   2.3 !default;
+
+// Options
+
+$enable-rounded:            false !default;
+
+// Body
+
+$body-color:                $gray-700 !default;
+
+// Fonts
+
+// stylelint-disable-next-line value-keyword-case
+$font-family-sans-serif:      "Nunito Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol" !default;
+$h1-font-size:                2rem !default;
+$h2-font-size:                1.75rem !default;
+$h3-font-size:                1.5rem !default;
+$h4-font-size:                1.25rem !default;
+$h5-font-size:                1rem !default;
+$h6-font-size:                .75rem !default;
+$headings-font-weight:        600 !default;
+$headings-color:              $gray-900 !default;
+
+// Tables
+
+$table-border-color:          rgba(0, 0, 0, .05) !default;
+
+// Buttons + Forms
+
+$input-btn-border-width:      0 !default;
+
+// Buttons
+
+$btn-line-height:             1.5rem !default;
+$input-btn-padding-y:         .75rem !default;
+$input-btn-padding-x:         1.5rem !default;
+$input-btn-padding-y-sm:      .5rem !default;
+$input-btn-padding-x-sm:      1rem !default;
+$input-btn-padding-y-lg:      2rem !default;
+$input-btn-padding-x-lg:      2rem !default;
+$btn-font-weight:             600 !default;
+
+// Forms
+
+$input-line-height:                     1.5 !default;
+$input-bg:                              $gray-200 !default;
+$input-disabled-bg:                     $gray-300 !default;
+$input-group-addon-bg:                  $gray-300 !default;
+
+// Navbar
+
+$navbar-padding-y:                  1.5rem !default;
+$navbar-dark-hover-color:           $white !default;
+$navbar-light-color:                rgba($black, .3) !default;
+$navbar-light-hover-color:          $gray-900 !default;
+$navbar-light-active-color:         $gray-900 !default;
+
+// Pagination
+
+$pagination-border-color:           transparent !default;
+$pagination-hover-border-color:     $pagination-border-color !default;
+$pagination-disabled-border-color:  $pagination-border-color !default;

assets/css/bootstrap.scss

@@ -10,6 +10,11 @@
  * ---------------------------------------------------------------------------- */
 
 $primary: #439982;
+
 $min-contrast-ratio: 2;
 
+@import "variables";
+
 @import '../../node_modules/bootstrap/scss/bootstrap'; 
+
+@import "bootswatch";