diff --git a/addons/account/views/account_payment_view.xml b/addons/account/views/account_payment_view.xml
index bf2d36486bb..f35c3ff25ce 100644
--- a/addons/account/views/account_payment_view.xml
+++ b/addons/account/views/account_payment_view.xml
@@ -25,7 +25,7 @@
             <field name="name">account.supplier.payment.tree</field>
             <field name="model">account.payment</field>
             <field name="arch" type="xml">
-                <tree colors="blue:state=='draft'; #707070:state=='sent'; #A0A0A0:state=='reconciled'" edit="false">
+                <tree decoration-info="state=='draft'" decoration-muted="state=='reconciled'" edit="false">
                     <field name="payment_date"/>
                     <field name="name"/>
                     <field name="journal_id"/>
diff --git a/addons/crm/crm_lead_view.xml b/addons/crm/crm_lead_view.xml
index 8880876962f..e61b4478383 100644
--- a/addons/crm/crm_lead_view.xml
+++ b/addons/crm/crm_lead_view.xml
@@ -667,7 +667,7 @@
             <field name="name">crm.lead.next.activity.tree</field>
             <field name="model">crm.lead</field>
             <field name="arch" type="xml">
-                <tree string="Next Activity" create="false" colors="red:date_action and (date_action &lt; current_date)" default_order="date_action">
+                <tree string="Next Activity" create="false" decoration-danger="date_action and (date_action &lt; current_date)" default_order="date_action">
                     <field name="name"/>
                     <field name="date_action"/>
                     <field name="next_activity_id"/>
diff --git a/addons/hr_equipment/views/hr_equipment_views.xml b/addons/hr_equipment/views/hr_equipment_views.xml
index ebec9eb7c8d..83258980a8f 100644
--- a/addons/hr_equipment/views/hr_equipment_views.xml
+++ b/addons/hr_equipment/views/hr_equipment_views.xml
@@ -133,7 +133,7 @@
         <field name="name">hr.equipment.request.tree</field>
         <field name="model">hr.equipment.request</field>
         <field name="arch" type="xml">
-            <tree string="maintenance Request" fonts="bold:message_unread==True">
+            <tree string="maintenance Request" decoration-bf="message_unread==True">
                 <field name="message_unread" invisible="1"/>
                 <field name="name"/>
                 <field name="request_date" groups="base.group_no_one"/>
@@ -313,7 +313,7 @@
         <field name="name">hr.equipment.tree</field>
         <field name="model">hr.equipment</field>
         <field name="arch" type="xml">
-            <tree string="Assign To Employee"  fonts="bold:message_unread==True">
+            <tree string="Assign To Employee"  decoration-bf="message_unread==True">
                 <field name="message_unread" invisible="1"/>
                 <field name="name"/>
                 <field name="employee_id" string="Employee"/>
diff --git a/addons/sale_contract/views/sale_contract_view.xml b/addons/sale_contract/views/sale_contract_view.xml
index d55d7a00769..d5a35506127 100644
--- a/addons/sale_contract/views/sale_contract_view.xml
+++ b/addons/sale_contract/views/sale_contract_view.xml
@@ -242,7 +242,7 @@
             <field name="model">account.analytic.account</field>
             <field eval="10" name="priority"/>
             <field name="arch" type="xml">
-                <tree toolbar="1" colors="grey:state=='close';" string="Analytic Accounts">
+                <tree toolbar="1" decoration-muted="state=='close'" string="Analytic Accounts">
                     <field name="complete_name"/>
                     <field name="manager_id"/>
                     <field name="contract_type"/>
diff --git a/addons/stock/stock_view.xml b/addons/stock/stock_view.xml
index e1168f931ab..4caf8335028 100644
--- a/addons/stock/stock_view.xml
+++ b/addons/stock/stock_view.xml
@@ -731,7 +731,7 @@
                             <field name="recompute_pack_op" invisible="1"/>
                             <field name="pack_operation_ids" invisible="1"/>
                             <field name="pack_operation_product_ids" options="{'reload_on_button': True}" context="{'default_picking_id': id, 'default_location_id': location_id, 'default_location_dest_id': location_dest_id}">
-                                <tree editable="bottom" colors="grey:result_package_id;red:qty_done&gt;product_qty;green:qty_done==product_qty and state!='done'">
+                                <tree editable="bottom" decoration-muted="result_package_id" decoration-danger="qty_done&gt;product_qty" decoration-success="qty_done==product_qty and state!='done'">
                                     <field name="package_id" groups="stock.group_tracking_lot" invisible="1"/>
                                     <field name="product_id" on_change="product_id_change(product_id, product_uom_id, product_qty)" required="1" attrs="{'readonly': [('fresh_record', '=', False)]}"/>
                                     <field name="fresh_record" invisible="1"/>
@@ -756,7 +756,7 @@
                             </field>
                             <field name="picking_type_entire_packs" invisible="1"/>
                             <field name="pack_operation_pack_ids" options="{'reload_on_button': True}" attrs="{'invisible': [('pack_operation_pack_ids', '=', []), ('picking_type_entire_packs', '=', False)]}" context="{'default_picking_id': id, 'default_location_id': location_id, 'default_location_dest_id': location_dest_id, 'default_picking_id': id}" groups="stock.group_tracking_lot">
-                                <tree editable="bottom" colors="grey:qty_done&gt;0;">
+                                <tree editable="bottom" decoration-muted="qty_done&gt;0">
                                     <field name="package_id" required="1" string="Package To Move"/>
                                     <field name="picking_id" invisible="1"/>
                                     <field name="location_id" domain="[('id', 'child_of', parent.location_id)]" invisible="1"/>
@@ -1165,7 +1165,7 @@
             <field name="model">stock.move</field>
             <field eval="4" name="priority"/>
             <field name="arch" type="xml">
-                <tree decoration-muted="scrapped == True" colors="grey:scrapped == True" string="Stock Moves" editable="bottom">
+                <tree decoration-muted="scrapped == True" string="Stock Moves" editable="bottom">
                     <field name="product_id" on_change="onchange_product_id(product_id,location_id,location_dest_id, parent.partner_id)"/>
                     <field name="name" invisible="1"/>
                     <field name="product_uom_qty" on_change="onchange_quantity(product_id, product_uom_qty, product_uom, product_uos)"/>
diff --git a/doc/howtos/backend.rst b/doc/howtos/backend.rst
index 45b02c60e80..77b8c1ed176 100644
--- a/doc/howtos/backend.rst
+++ b/doc/howtos/backend.rst
@@ -974,19 +974,31 @@ Tree views can take supplementary attributes to further customize their
 behavior:
 
 ``colors``
-    mappings of colors to conditions. If the condition evaluates to ``True``,
-    the corresponding color is applied to the row:
+    .. deprecated:: 9.0
+        replaced by ``decoration-{$name}``
+
+``decoration-{$name}``
+    allow changing the style of a row's text based on the corresponding
+    record's attributes.
+
+    Values are Python expressions. For each record, the expression is evaluated
+    with the record's attributes as context values and if ``true``, the
+    corresponding style is applied to the row. Other context values are
+    ``uid`` (the id of the current user) and ``current_date`` (the current date
+    as a string of the form ``yyyy-MM-dd``).
+
+    ``{$name}`` can be ``bf`` (``font-weight: bold``), ``it``
+    (``font-style: italic``), or any bootstrap contextual color (``danger``,
+    ``info``, ``muted``, ``primary``, ``success`` or ``warning``).
 
     .. code-block:: xml
 
-        <tree string="Idea Categories" colors="blue:state=='draft';red:state=='trashed'">
+        <tree string="Idea Categories" decoration-info="state=='draft'"
+            decoration-danger="state=='trashed'">
             <field name="name"/>
             <field name="state"/>
         </tree>
 
-    Clauses are separated by ``;``, the color and condition are separated by
-    ``:``.
-
 ``editable``
     Either ``"top"`` or ``"bottom"``. Makes the tree view editable in-place
     (rather than having to go through the form view), the value is the