css fix: table th text color

ot_templating/Resources/Public/assets/Classic/style/classic-blue.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/classic-green.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/classic-grey.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/classic-light-blue.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/classic-light-red.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/classic-orange.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/classic-purple.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/classic-red.css

@@ -403,7 +403,7 @@ ul.dropdown-left {
   padding-bottom: 12px;
   text-align: left;
   background-color: #e6e6e6;
-  color: white;
+  color: #333333;
 }
 .content pre {
   display: block;

ot_templating/Resources/Public/assets/Classic/style/module/_content.scss

@@ -126,7 +126,7 @@ $cols-header-font-weight: $cols-header-font-weight;
     padding-bottom: 12px;
     text-align: left;
     background-color: $content-table-header-bg-color;
-    color: white;
+    color: #333333;
   }
 
   pre {