diff --git a/dist/4/cyborg/_variables.scss b/dist/4/cyborg/_variables.scss
index 3f39d9de..c5190f0a 100755
--- a/dist/4/cyborg/_variables.scss
+++ b/dist/4/cyborg/_variables.scss
@@ -77,8 +77,6 @@ $input-border-color:                $white !default;
 $input-group-addon-color:           $white !default;
 $input-group-addon-bg:              $gray-700 !default;
 $input-group-addon-border-color:    transparent !default;
-$custom-file-color:                 $white !default;
-$custom-file-border-color:          $gray-700 !default;
 
 // Dropdowns
 
diff --git a/dist/4/darkly/_variables.scss b/dist/4/darkly/_variables.scss
index 7b7f0d5e..4eb48dbd 100755
--- a/dist/4/darkly/_variables.scss
+++ b/dist/4/darkly/_variables.scss
@@ -69,8 +69,6 @@ $table-border-color:          $gray-700 !default;
 $input-border-color:                $body-bg !default;
 $input-group-addon-color:           $gray-500 !default;
 $input-group-addon-bg:              $gray-700 !default;
-$custom-file-color:                 $gray-500 !default;
-$custom-file-border-color:          $body-bg !default;
 
 // Dropdowns
 
diff --git a/dist/4/materia/_variables.scss b/dist/4/materia/_variables.scss
index 265f812f..0e2d5703 100755
--- a/dist/4/materia/_variables.scss
+++ b/dist/4/materia/_variables.scss
@@ -75,15 +75,6 @@ $input-border-radius-lg:         0 !default;
 $input-border-radius-sm:         0 !default;
 $input-placeholder-color:        rgba(0, 0, 0, .4) !default;
 $input-group-addon-bg:           transparent !default;
-$custom-control-gutter:          1.75rem !default;
-$custom-control-indicator-focus-box-shadow: 0 !default;
-$custom-control-indicator-size:  1.25rem !default;
-$custom-control-indicator-bg:    $white !default;
-$custom-checkbox-indicator-border-radius: 2px !default;
-$custom-control-indicator-disabled-bg: $gray-100 !default;
-$custom-radio-indicator-icon-checked: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='4' fill='#2196f3'/></svg>") !default;
-$custom-select-border-radius:       0 !default;
-$custom-select-box-shadow:          none !default;
 
 // Navs
 
diff --git a/dist/4/superhero/_variables.scss b/dist/4/superhero/_variables.scss
index 4247fa98..98794b14 100755
--- a/dist/4/superhero/_variables.scss
+++ b/dist/4/superhero/_variables.scss
@@ -72,8 +72,6 @@ $table-dark-color:            $body-bg !default;
 $input-disabled-bg:                 $gray-100 !default;
 $input-border-color:                transparent !default;
 $input-group-addon-color:           $body-color !default;
-$custom-file-button-color:          $white !default;
-$custom-file-border-color:          $gray-200 !default;
 
 // Dropdowns
 
diff --git a/dist/cyborg/_variables.scss b/dist/cyborg/_variables.scss
index 76cd4412..c20592fb 100755
--- a/dist/cyborg/_variables.scss
+++ b/dist/cyborg/_variables.scss
@@ -80,8 +80,6 @@ $input-border-width:                0 !default;
 $input-group-addon-color:           $white !default;
 $input-group-addon-bg:              $gray-700 !default;
 $input-group-addon-border-color:    transparent !default;
-$custom-file-color:                 $white !default;
-$custom-file-border-color:          $gray-700 !default;
 
 $form-check-input-bg:                     $white !default;
 $form-check-input-border:                 none !default;
diff --git a/dist/darkly/_variables.scss b/dist/darkly/_variables.scss
index 3db108da..156d1601 100755
--- a/dist/darkly/_variables.scss
+++ b/dist/darkly/_variables.scss
@@ -68,8 +68,6 @@ $input-color:                       $gray-800 !default;
 $input-border-color:                $body-bg !default;
 $input-group-addon-color:           $gray-500 !default;
 $input-group-addon-bg:              $gray-700 !default;
-$custom-file-color:                 $gray-500 !default;
-$custom-file-border-color:          $body-bg !default;
 
 $form-check-input-bg:                     $white !default;
 $form-check-input-border:                 none !default;
diff --git a/dist/materia/_variables.scss b/dist/materia/_variables.scss
index b90a20b2..2ff2fc32 100755
--- a/dist/materia/_variables.scss
+++ b/dist/materia/_variables.scss
@@ -75,15 +75,6 @@ $input-border-radius-lg:         0 !default;
 $input-border-radius-sm:         0 !default;
 $input-placeholder-color:        rgba(0, 0, 0, .4) !default;
 $input-group-addon-bg:           transparent !default;
-$custom-control-gutter:          1.75rem !default;
-$custom-control-indicator-focus-box-shadow: 0 !default;
-$custom-control-indicator-size:  1.25rem !default;
-$custom-control-indicator-bg:    $white !default;
-$custom-checkbox-indicator-border-radius: 2px !default;
-$custom-control-indicator-disabled-bg: $gray-100 !default;
-$custom-radio-indicator-icon-checked: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='4' fill='#2196f3'/></svg>") !default;
-$custom-select-border-radius:       0 !default;
-$custom-select-box-shadow:          none !default;
 
 // Navs
 
diff --git a/docs/5/cyborg/_variables.scss b/docs/5/cyborg/_variables.scss
index 76cd4412..c20592fb 100644
--- a/docs/5/cyborg/_variables.scss
+++ b/docs/5/cyborg/_variables.scss
@@ -80,8 +80,6 @@ $input-border-width:                0 !default;
 $input-group-addon-color:           $white !default;
 $input-group-addon-bg:              $gray-700 !default;
 $input-group-addon-border-color:    transparent !default;
-$custom-file-color:                 $white !default;
-$custom-file-border-color:          $gray-700 !default;
 
 $form-check-input-bg:                     $white !default;
 $form-check-input-border:                 none !default;
diff --git a/docs/5/darkly/_variables.scss b/docs/5/darkly/_variables.scss
index 3db108da..156d1601 100644
--- a/docs/5/darkly/_variables.scss
+++ b/docs/5/darkly/_variables.scss
@@ -68,8 +68,6 @@ $input-color:                       $gray-800 !default;
 $input-border-color:                $body-bg !default;
 $input-group-addon-color:           $gray-500 !default;
 $input-group-addon-bg:              $gray-700 !default;
-$custom-file-color:                 $gray-500 !default;
-$custom-file-border-color:          $body-bg !default;
 
 $form-check-input-bg:                     $white !default;
 $form-check-input-border:                 none !default;
diff --git a/docs/5/materia/_variables.scss b/docs/5/materia/_variables.scss
index b90a20b2..2ff2fc32 100644
--- a/docs/5/materia/_variables.scss
+++ b/docs/5/materia/_variables.scss
@@ -75,15 +75,6 @@ $input-border-radius-lg:         0 !default;
 $input-border-radius-sm:         0 !default;
 $input-placeholder-color:        rgba(0, 0, 0, .4) !default;
 $input-group-addon-bg:           transparent !default;
-$custom-control-gutter:          1.75rem !default;
-$custom-control-indicator-focus-box-shadow: 0 !default;
-$custom-control-indicator-size:  1.25rem !default;
-$custom-control-indicator-bg:    $white !default;
-$custom-checkbox-indicator-border-radius: 2px !default;
-$custom-control-indicator-disabled-bg: $gray-100 !default;
-$custom-radio-indicator-icon-checked: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='4' fill='#2196f3'/></svg>") !default;
-$custom-select-border-radius:       0 !default;
-$custom-select-box-shadow:          none !default;
 
 // Navs