diff --git a/themes/bootprint3/scss/icons.scss b/themes/bootprint3/scss/icons.scss
index 8c2885d47543ad68e0a680c0964e53353b6f8ec9..48823e0f51b1c30be1167f84658954a214a303a9 100644
--- a/themes/bootprint3/scss/icons.scss
+++ b/themes/bootprint3/scss/icons.scss
@@ -1,4 +1,4 @@
-$bp3-icon-path: '../../bootprint3/images/icons' !default;
+$bp3-icon-path: '../../bootprint3/images/icons';
 .doi-icon { width: 16px; }
 .bp-icon {
   background-position: center center;
diff --git a/themes/sandal/scss/colors.scss b/themes/sandal/scss/colors.scss
index 17de5ebb4071c141126be6e58c2118a3e792152d..6eb6c5f569d3cf1ec4551487b3317564e388c54d 100644
--- a/themes/sandal/scss/colors.scss
+++ b/themes/sandal/scss/colors.scss
@@ -1,50 +1,50 @@
 @import 'vendor/tachyons-colors'; // Import colors from the tachyons library
 
 /* Material Colors can be found here: https://material.io/guidelines/style/color.html */
-$brand-primary: #1976d2 !default; /* Material Blue 700 */
-$brand-secondary: #ff6d00 !default; /* Material Orange A700 */
-
-$header-bg: #607d8b !default; /* Material Blue Grey 500 */
-$header-light: #cfd8dc !default; /* Material Blue Grey 100 */
-
-$action-color: $brand-primary !default;
-$action-hover-bg: $white !default;
-$action-hover-color: $black !default;
-$passive-icon-color: $gray !default;
-$highlighter-color: lighten(#FF0, 20%) !default;
-
-$search-row-bg: $white !default;
-$search-row-bg-alt: $light-gray !default;
-$search-row-bg-hover: $lightest-blue !default;
-$search-row-selected-bg: $brand-primary !default;
-$search-row-selected-color: $white !default;
-
-$sidebar-title-bg: $white !default;
-$sidebar-title-color: $near-black !default;
-$sidebar-title-icon-color: $light-gray !default;
-$sidebar-item-bg: $white !default;
-$sidebar-item-color: $black !default;
-$sidebar-item-hover-bg: $lightest-blue !default;
-$sidebar-item-badge: $gray !default;
-$sidebar-active-bg: $brand-secondary !default;
-$sidebar-active-color: $white !default;
+$brand-primary: #1976d2; /* Material Blue 700 */
+$brand-secondary: #ff6d00; /* Material Orange A700 */
+
+$header-bg: #607d8b; /* Material Blue Grey 500 */
+$header-light: #cfd8dc; /* Material Blue Grey 100 */
+
+$action-color: $brand-primary;
+$action-hover-bg: $white;
+$action-hover-color: $black;
+$passive-icon-color: $gray;
+$highlighter-color: lighten(#FF0, 20%);
+
+$search-row-bg: $white;
+$search-row-bg-alt: $light-gray;
+$search-row-bg-hover: $lightest-blue;
+$search-row-selected-bg: $brand-primary;
+$search-row-selected-color: $white;
+
+$sidebar-title-bg: $white;
+$sidebar-title-color: $near-black;
+$sidebar-title-icon-color: $light-gray;
+$sidebar-item-bg: $white;
+$sidebar-item-color: $black;
+$sidebar-item-hover-bg: $lightest-blue;
+$sidebar-item-badge: $gray;
+$sidebar-active-bg: $brand-secondary;
+$sidebar-active-color: $white;
 
 /* Bootstrap variable changes */
 
-$link-color: #1565c0 !default; /* Material Blue 800 */
-$link-color-hover: #0d47a1 !default; /* Material Blue 900 */
+$link-color: #1565c0; /* Material Blue 800 */
+$link-color-hover: #0d47a1; /* Material Blue 900 */
 
-$input-border:              $light-silver !default;
-$input-color:               $dark-gray !default;
-$btn-default-bg:            $light-gray !default;
-$btn-default-color:         $near-black !default;
-$btn-primary-bg:            $action-color !default;
+$input-border:              $light-silver;
+$input-color:               $dark-gray;
+$btn-default-bg:            $light-gray;
+$btn-default-color:         $near-black;
+$btn-primary-bg:            $action-color;
 
-$input-border-radius:         .25rem !default;
+$input-border-radius:         .25rem;
 
-$autocomplete-hover-bg:     $header-light !default;
-$dropdown-link-hover-bg:    $header-light !default;
-$dropdown-link-hover-color: $black !default;
-$list-group-active-bg:      $brand-secondary !default;
-$table-bg-hover:            $header-light !default;
-$pagination-color:          $header-bg !default;
+$autocomplete-hover-bg:     $header-light;
+$dropdown-link-hover-bg:    $header-light;
+$dropdown-link-hover-color: $black;
+$list-group-active-bg:      $brand-secondary;
+$table-bg-hover:            $header-light;
+$pagination-color:          $header-bg;