diff --git a/CHANGELOG b/CHANGELOG
index aba7a66582..b1d9884e03 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,4 @@
+* Remove colors attribute on tree view
 * Remove style on Report
 * Add StateReport to Wizard
 * Allow to override ModelSQL._table
diff --git a/doc/topics/views/index.rst b/doc/topics/views/index.rst
index 479670c065..eda830c892 100644
--- a/doc/topics/views/index.rst
+++ b/doc/topics/views/index.rst
@@ -497,9 +497,6 @@ Each tree view must start with this tag.
       must be an integer and it will be updated to match the new sort order
       when the user uses ``Drag and Drop`` on list rows.
 
-    * ``colors``: A PySON string that will be evaluated for each record. A
-      string containing the name of the color will be returned.
-
     * ``keyword_open``: A boolean to specify if the client should look for a
       tree_open action on double click instead of switching view.
 
diff --git a/trytond/ir/module.py b/trytond/ir/module.py
index a7859e3b34..ffae83ca96 100644
--- a/trytond/ir/module.py
+++ b/trytond/ir/module.py
@@ -11,7 +11,7 @@ from trytond.wizard import Wizard, StateView, Button, StateTransition, \
 from trytond import backend
 from trytond.pool import Pool
 from trytond.transaction import Transaction
-from trytond.pyson import Eval, If
+from trytond.pyson import Eval
 from trytond.rpc import RPC
 
 __all__ = [
@@ -135,15 +135,6 @@ class Module(ModelSQL, ModelView):
                     child_ids[name2id[dep.name]].append(child.id)
         return child_ids
 
-    @classmethod
-    def view_attributes(cls):
-        return [('/tree', 'colors',
-                If(Eval('state').in_(['to upgrade', 'to install']),
-                    'blue',
-                    If(Eval('state') == 'uninstalled',
-                        'grey',
-                        'black')))]
-
     @classmethod
     def delete(cls, records):
         for module in records:
diff --git a/trytond/ir/ui/tree.rnc b/trytond/ir/ui/tree.rnc
index e42ec0d214..7d7e008377 100644
--- a/trytond/ir/ui/tree.rnc
+++ b/trytond/ir/ui/tree.rnc
@@ -9,7 +9,6 @@ attlist.tree &=
 attlist.tree &= attribute on_write { text }?
 attlist.tree &= attribute editable { "top" | "bottom" }?
 attlist.tree &= attribute sequence { text }?
-attlist.tree &= attribute colors { text }?
 attlist.tree &=
   [ a:defaultValue = "0" ] attribute keyword_open { "0" | "1" }?
 attlist.tree &=
diff --git a/trytond/ir/ui/tree.rng b/trytond/ir/ui/tree.rng
index 44a5d3c96d..3a970d2da6 100644
--- a/trytond/ir/ui/tree.rng
+++ b/trytond/ir/ui/tree.rng
@@ -36,11 +36,6 @@
       <attribute name="sequence"/>
     </optional>
   </define>
-  <define name="attlist.tree" combine="interleave">
-    <optional>
-      <attribute name="colors"/>
-    </optional>
-  </define>
   <define name="attlist.tree" combine="interleave">
     <optional>
       <attribute name="keyword_open" a:defaultValue="0">
diff --git a/trytond/ir/ui/view.py b/trytond/ir/ui/view.py
index ce2f07ccf9..0492ad4296 100644
--- a/trytond/ir/ui/view.py
+++ b/trytond/ir/ui/view.py
@@ -155,7 +155,7 @@ class View(ModelSQL, ModelView):
             }
 
             def encode(element):
-                for attr in ('states', 'domain', 'spell', 'colors'):
+                for attr in ('states', 'domain', 'spell'):
                     if element.get(attr):
                         try:
                             value = PYSONDecoder().decode(element.get(attr))