Fix for Outlook html mail with a defined background color and no text color.

When the default text color is white (that happens with some themes) then
you will see nothing. This fix set the text color to black.

functions/mime.php

@@ -1518,6 +1518,7 @@ function sq_body2div($attary, $mailbox, $message, $id){
     $divattary = Array('class' => "'bodyclass'");
     $bgcolor = '#ffffff';
     $text = '#000000';
+    $has_bgc_stl = $has_txt_stl = false;
     $styledef = '';
     if (is_array($attary) && sizeof($attary) > 0){
         foreach ($attary as $attname=>$attvalue){
@@ -1530,13 +1531,20 @@ function sq_body2div($attary, $mailbox, $message, $id){
                     $styledef .= "background-image: url('$attvalue'); ";
                     break;
                 case 'bgcolor':
+                    $has_bgc_stl = true;
                     $styledef .= "background-color: $attvalue; ";
                     break;
                 case 'text':
+                    $has_txt_stl = true;
                     $styledef .= "color: $attvalue; ";
                     break;
             }
         }
+        // Outlook defines a white bgcolor and no text color. This can lead to
+        // white text on a white bg with certain themes.
+        if ($has_bgc_stl && !$has_txt_stl) {
+            $styledef .= "color: $text; ";
+        }
         if (strlen($styledef) > 0){
             $divattary{"style"} = "\"$styledef\"";
         }