diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 1b0033f5d3f..dc25d81344d 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -1236,14 +1236,8 @@ class Form
                 $opt.= ($objp->rowid == $selected)?' selected="selected"':'';
                 if (! empty($conf->stock->enabled) && $objp->fk_product_type == 0 && isset($objp->stock))
                 {
-                    if ($objp->stock > 0)
-                    {
-                        $opt.= ' style="background-color:#32CD32; color:#F5F5F5;"';
-                    }
-                    else if ($objp->stock <= 0)
-                    {
-                        $opt.= ' style="background-color:#FF0000; color:#F5F5F5;"';
-                    }
+                	if ($objp->stock > 0) $opt.= ' class="product_line_stock_ok"';
+                    else if ($objp->stock <= 0) $opt.= ' class="product_line_stock_too_low"';
                 }
                 $opt.= '>';
                 $opt.= $objp->ref.' - '.dol_trunc($label,32).' - ';
diff --git a/htdocs/theme/auguria/style.css.php b/htdocs/theme/auguria/style.css.php
index 8f232b4219a..b981dc6d69b 100644
--- a/htdocs/theme/auguria/style.css.php
+++ b/htdocs/theme/auguria/style.css.php
@@ -1497,6 +1497,9 @@ a.impayee:hover { font-weight: bold; color: #550000; }
  *  Other
  */
 
+.product_line_stock_ok { color: #002200; }
+.product_line_stock_too_low { color: #664400; }
+
 .fieldrequired { font-weight: bold; color: #000055; }
 
 .photo {
diff --git a/htdocs/theme/bureau2crea/style.css.php b/htdocs/theme/bureau2crea/style.css.php
index 28216be4411..e1c8f5a6abf 100644
--- a/htdocs/theme/bureau2crea/style.css.php
+++ b/htdocs/theme/bureau2crea/style.css.php
@@ -1657,6 +1657,9 @@ a.impayee:hover { font-weight: bold; color: #550000; }
  *  Other
  */
 
+.product_line_stock_ok { color: #002200; }
+.product_line_stock_too_low { color: #664400; }
+
 .fieldrequired { font-weight: bold; color: #000055; }
 
 .photo {
diff --git a/htdocs/theme/eldy/style.css.php b/htdocs/theme/eldy/style.css.php
index c12c0ab1854..5f0e563a1cf 100644
--- a/htdocs/theme/eldy/style.css.php
+++ b/htdocs/theme/eldy/style.css.php
@@ -1825,6 +1825,9 @@ a.impayee:hover { font-weight: bold; color: #550000; }
  *  Other
  */
 
+.product_line_stock_ok { color: #002200; }
+.product_line_stock_too_low { color: #664400; }
+
 .fieldrequired { font-weight: bold; color: #000055; }
 
 .photo {