diff --git a/gdk/gdkdmabuftexture.c b/gdk/gdkdmabuftexture.c
index 62fea85f25..fb5450532b 100644
--- a/gdk/gdkdmabuftexture.c
+++ b/gdk/gdkdmabuftexture.c
@@ -204,7 +204,7 @@ gdk_dmabuf_texture_new_from_builder (GdkDmabufTextureBuilder *builder,
   self = g_object_new (GDK_TYPE_DMABUF_TEXTURE,
                        "width", width,
                        "height", height,
-                       "color-state", GDK_COLOR_STATE_SRGB,
+                       "color-state", gdk_dmabuf_texture_builder_get_color_state (builder),
                        NULL);
 
   g_set_object (&self->display, display);
diff --git a/gdk/gdkdmabuftexturebuilder.c b/gdk/gdkdmabuftexturebuilder.c
index 6508d9c2cf..055ed6f9ea 100644
--- a/gdk/gdkdmabuftexturebuilder.c
+++ b/gdk/gdkdmabuftexturebuilder.c
@@ -24,6 +24,7 @@
 #include "gdkdebugprivate.h"
 #include "gdkdisplay.h"
 #include "gdkenumtypes.h"
+#include "gdkcolorstate.h"
 #include "gdkdmabuftextureprivate.h"
 #include "gdkdmabuftexturebuilderprivate.h"
 
@@ -41,6 +42,8 @@ struct _GdkDmabufTextureBuilder
 
   GdkDmabuf dmabuf;
 
+  GdkColorState *color_state;
+
   GdkTexture *update_texture;
   cairo_region_t *update_region;
 };
@@ -124,6 +127,7 @@ enum
   PROP_MODIFIER,
   PROP_PREMULTIPLIED,
   PROP_N_PLANES,
+  PROP_COLOR_STATE,
   PROP_UPDATE_REGION,
   PROP_UPDATE_TEXTURE,
 
@@ -141,6 +145,7 @@ gdk_dmabuf_texture_builder_dispose (GObject *object)
 
   g_clear_object (&self->update_texture);
   g_clear_pointer (&self->update_region, cairo_region_destroy);
+  g_clear_pointer (&self->color_state, gdk_color_state_unref);
 
   G_OBJECT_CLASS (gdk_dmabuf_texture_builder_parent_class)->dispose (object);
 }
@@ -183,6 +188,10 @@ gdk_dmabuf_texture_builder_get_property (GObject    *object,
       g_value_set_uint (value, self->dmabuf.n_planes);
       break;
 
+    case PROP_COLOR_STATE:
+      g_value_set_boxed (value, self->color_state);
+      break;
+
     case PROP_UPDATE_REGION:
       g_value_set_boxed (value, self->update_region);
       break;
@@ -235,6 +244,10 @@ gdk_dmabuf_texture_builder_set_property (GObject      *object,
       gdk_dmabuf_texture_builder_set_n_planes (self, g_value_get_uint (value));
       break;
 
+    case PROP_COLOR_STATE:
+      gdk_dmabuf_texture_builder_set_color_state (self, g_value_get_boxed (value));
+      break;
+
     case PROP_UPDATE_REGION:
       gdk_dmabuf_texture_builder_set_update_region (self, g_value_get_boxed (value));
       break;
@@ -347,6 +360,18 @@ gdk_dmabuf_texture_builder_class_init (GdkDmabufTextureBuilderClass *klass)
                        1, GDK_DMABUF_MAX_PLANES, 1,
                        G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
+  /**
+   * GdkDmabufTextureBuilder:color-state:
+   *
+   * The color state of the texture.
+   *
+   * Since: 4.16
+   */
+  properties[PROP_COLOR_STATE] =
+    g_param_spec_boxed ("color-state", NULL, NULL,
+                        GDK_TYPE_COLOR_STATE,
+                        G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
   /**
    * GdkDmabufTextureBuilder:update-region: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_update_region org.gtk.Property.set=gdk_dmabuf_texture_builder_set_update_region)
    *
@@ -383,6 +408,8 @@ gdk_dmabuf_texture_builder_init (GdkDmabufTextureBuilder *self)
 
   for (int i = 0; i < GDK_DMABUF_MAX_PLANES; i++)
     self->dmabuf.planes[i].fd = -1;
+
+  self->color_state = gdk_color_state_ref (gdk_color_state_get_srgb ());
 }
 
 /**
@@ -843,6 +870,51 @@ gdk_dmabuf_texture_builder_set_offset (GdkDmabufTextureBuilder *self,
   self->dmabuf.planes[plane].offset = offset;
 }
 
+/**
+ * gdk_dmabuf_texture_builder_get_color_state: (attributes org.gtk.Method.get_property=color-state)
+ * @self: a `GdkDmabufTextureBuilder`
+ *
+ * Gets the color state previously set via gdk_dmabuf_texture_builder_set_color_state().
+ *
+ * Returns: the color state
+ *
+ * Since: 4.16
+ */
+GdkColorState *
+gdk_dmabuf_texture_builder_get_color_state (GdkDmabufTextureBuilder *self)
+{
+  g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), NULL);
+
+  return self->color_state;
+}
+
+/**
+ * gdk_dmabuf_texture_builder_set_color_state: (attributes org.gtk.Method.set_property=color-state)
+ * @self: a `GdkDmabufTextureBuilder`
+ * @color_state: a `GdkColorState`
+ *
+ * Sets the color state for the texture.
+ *
+ * By default, the sRGB colorstate is used. If you don't know what
+ * colorstates are, this is probably the right thing.
+ *
+ * Since: 4.16
+ */
+void
+gdk_dmabuf_texture_builder_set_color_state (GdkDmabufTextureBuilder *self,
+                                            GdkColorState           *color_state)
+{
+  g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
+  g_return_if_fail (color_state != NULL);
+
+  if (gdk_color_state_equal (self->color_state, color_state))
+    return;
+
+  g_clear_pointer (&self->color_state, gdk_color_state_unref);
+  self->color_state = gdk_color_state_ref (color_state);
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_COLOR_STATE]);
+}
+
 /**
  * gdk_dmabuf_texture_builder_get_update_texture: (attributes org.gtk.Method.get_property=update-texture)
  * @self: a `GdkDmabufTextureBuilder`
diff --git a/gdk/gdkdmabuftexturebuilder.h b/gdk/gdkdmabuftexturebuilder.h
index 88ecfea5cf..28a0f45d6e 100644
--- a/gdk/gdkdmabuftexturebuilder.h
+++ b/gdk/gdkdmabuftexturebuilder.h
@@ -100,6 +100,12 @@ void                     gdk_dmabuf_texture_builder_set_offset       (GdkDmabufT
                                                                       unsigned int                plane,
                                                                       unsigned int                offset);
 
+GDK_AVAILABLE_IN_4_16
+GdkColorState *          gdk_dmabuf_texture_builder_get_color_state    (GdkDmabufTextureBuilder  *self);
+GDK_AVAILABLE_IN_4_16
+void                     gdk_dmabuf_texture_builder_set_color_state    (GdkDmabufTextureBuilder  *self,
+                                                                        GdkColorState            *color_state);
+
 GDK_AVAILABLE_IN_4_14
 GdkTexture *             gdk_dmabuf_texture_builder_get_update_texture (GdkDmabufTextureBuilder  *self) G_GNUC_PURE;
 GDK_AVAILABLE_IN_4_14
diff --git a/testsuite/gtk/defaultvalue.c b/testsuite/gtk/defaultvalue.c
index 4734f80120..4f1988699d 100644
--- a/testsuite/gtk/defaultvalue.c
+++ b/testsuite/gtk/defaultvalue.c
@@ -22,8 +22,8 @@
 
 static void
 check_property (const char *output,
-	        GParamSpec *pspec,
-		GValue *value)
+                GParamSpec *pspec,
+                GValue *value)
 {
   GValue default_value = G_VALUE_INIT;
   char *v, *dv, *msg;
@@ -42,12 +42,12 @@ check_property (const char *output,
   dv = g_strdup_value_contents (&default_value);
 
   msg = g_strdup_printf ("%s %s.%s: %s != %s\n",
-			 output,
-			 g_type_name (pspec->owner_type),
-			 pspec->name,
-			 dv, v);
+                         output,
+                         g_type_name (pspec->owner_type),
+                         pspec->name,
+                         dv, v);
   g_assertion_message (G_LOG_DOMAIN, __FILE__, __LINE__,
-		       G_STRFUNC, msg);
+                       G_STRFUNC, msg);
   g_free (msg);
 
   g_free (v);
@@ -159,16 +159,16 @@ G_GNUC_END_IGNORE_DEPRECATIONS
       gboolean check = TRUE;
 
       if (pspec->owner_type != type)
-	continue;
+        continue;
 
       if ((pspec->flags & G_PARAM_READABLE) == 0)
-	continue;
+        continue;
 
       /* This is set by the treelistmodel, plain 
        * g_object_new() will crash here */
       if (g_type_is_a (type, GTK_TYPE_TREE_LIST_ROW) &&
-	  (strcmp (pspec->name, "item") == 0))
-	continue;
+          (strcmp (pspec->name, "item") == 0))
+        continue;
 
       /* This is set via class_init, and we have a11y tests to verify it */
       if (g_type_is_a (type, GTK_TYPE_ACCESSIBLE) &&
@@ -181,121 +181,121 @@ G_GNUC_END_IGNORE_DEPRECATIONS
         check = FALSE;
 
       if (g_type_is_a (type, GDK_TYPE_CLIPBOARD) &&
-	  strcmp (pspec->name, "display") == 0)
-	check = FALSE;
+          strcmp (pspec->name, "display") == 0)
+        check = FALSE;
 
       /* These are set in init() */
       if ((g_type_is_a (type, GDK_TYPE_CLIPBOARD) ||
            g_type_is_a (type, GDK_TYPE_CONTENT_PROVIDER) ||
            g_type_is_a (type, GTK_TYPE_DROP_TARGET)) &&
-	  strcmp (pspec->name, "formats") == 0)
-	check = FALSE;
+          strcmp (pspec->name, "formats") == 0)
+        check = FALSE;
 
       if (g_type_is_a (type, GDK_TYPE_CONTENT_PROVIDER) &&
-	  strcmp (pspec->name, "storable-formats") == 0)
-	check = FALSE;
+          strcmp (pspec->name, "storable-formats") == 0)
+        check = FALSE;
 
       if (g_type_is_a (type, GDK_TYPE_DMABUF_TEXTURE_BUILDER) &&
-	  strcmp (pspec->name, "display") == 0)
-	check = FALSE;
+          strcmp (pspec->name, "display") == 0)
+        check = FALSE;
 
 G_GNUC_BEGIN_IGNORE_DEPRECATIONS
       /* set in the constructor */
       if (g_type_is_a (type, GSK_TYPE_GL_SHADER) &&
-	  strcmp (pspec->name, "source") == 0)
-	check = FALSE;
+          strcmp (pspec->name, "source") == 0)
+        check = FALSE;
 G_GNUC_END_IGNORE_DEPRECATIONS
 
       /* This one has a special-purpose default value */
       if (g_type_is_a (type, GTK_TYPE_DIALOG) &&
-	  (strcmp (pspec->name, "use-header-bar") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "use-header-bar") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_ASSISTANT) &&
-	  (strcmp (pspec->name, "use-header-bar") == 0 ||
+          (strcmp (pspec->name, "use-header-bar") == 0 ||
            strcmp (pspec->name, "pages") == 0)) /* pages always gets a non-NULL value */
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_STACK) &&
-	  (strcmp (pspec->name, "pages") == 0)) /* pages always gets a non-NULL value */
-	check = FALSE;
+          (strcmp (pspec->name, "pages") == 0)) /* pages always gets a non-NULL value */
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_NOTEBOOK) &&
-	  (strcmp (pspec->name, "pages") == 0)) /* pages always gets a non-NULL value */
-	check = FALSE;
+          (strcmp (pspec->name, "pages") == 0)) /* pages always gets a non-NULL value */
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_COMBO_BOX) &&
           (strcmp (pspec->name, "child") == 0))
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_POPOVER) &&
-	  (strcmp (pspec->name, "pointing-to") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "pointing-to") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GDK_TYPE_DISPLAY_MANAGER) &&
-	  (strcmp (pspec->name, "default-display") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "default-display") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GDK_TYPE_DISPLAY) &&
-	  (strcmp (pspec->name, "dmabuf-formats") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "dmabuf-formats") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GDK_TYPE_MONITOR) &&
           (strcmp (pspec->name, "geometry") == 0))
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_ABOUT_DIALOG) &&
-	  (strcmp (pspec->name, "program-name") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "program-name") == 0))
+        check = FALSE;
 
       /* These are set to the current date */
       if (g_type_is_a (type, GTK_TYPE_CALENDAR) &&
-	  (strcmp (pspec->name, "year") == 0 ||
-	   strcmp (pspec->name, "month") == 0 ||
-	   strcmp (pspec->name, "day") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "year") == 0 ||
+           strcmp (pspec->name, "month") == 0 ||
+           strcmp (pspec->name, "day") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_CELL_AREA_CONTEXT) &&
-	  (strcmp (pspec->name, "minimum-width") == 0 ||
-	   strcmp (pspec->name, "minimum-height") == 0 ||
-	   strcmp (pspec->name, "natural-width") == 0 ||
-	   strcmp (pspec->name, "natural-height") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "minimum-width") == 0 ||
+           strcmp (pspec->name, "minimum-height") == 0 ||
+           strcmp (pspec->name, "natural-width") == 0 ||
+           strcmp (pspec->name, "natural-height") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_CELL_RENDERER_TEXT) &&
-	  (strcmp (pspec->name, "background-gdk") == 0 ||
-	   strcmp (pspec->name, "foreground-gdk") == 0 ||
-	   strcmp (pspec->name, "background-rgba") == 0 ||
-	   strcmp (pspec->name, "foreground-rgba") == 0 ||
-	   strcmp (pspec->name, "font") == 0 ||
-	   strcmp (pspec->name, "font-desc") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "background-gdk") == 0 ||
+           strcmp (pspec->name, "foreground-gdk") == 0 ||
+           strcmp (pspec->name, "background-rgba") == 0 ||
+           strcmp (pspec->name, "foreground-rgba") == 0 ||
+           strcmp (pspec->name, "font") == 0 ||
+           strcmp (pspec->name, "font-desc") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_CELL_VIEW) &&
-	  (strcmp (pspec->name, "background-gdk") == 0 ||
-	   strcmp (pspec->name, "foreground-gdk") == 0 ||
-	   strcmp (pspec->name, "foreground-rgba") == 0 ||
-	   strcmp (pspec->name, "background-rgba") == 0 ||
+          (strcmp (pspec->name, "background-gdk") == 0 ||
+           strcmp (pspec->name, "foreground-gdk") == 0 ||
+           strcmp (pspec->name, "foreground-rgba") == 0 ||
+           strcmp (pspec->name, "background-rgba") == 0 ||
            strcmp (pspec->name, "cell-area") == 0 ||
            strcmp (pspec->name, "cell-area-context") == 0))
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_COLOR_BUTTON) &&
-	  (strcmp (pspec->name, "color") == 0 ||
-	   strcmp (pspec->name, "rgba") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "color") == 0 ||
+           strcmp (pspec->name, "rgba") == 0))
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_COLUMN_VIEW) &&
           (strcmp (pspec->name, "columns") == 0 ||
-	   strcmp (pspec->name, "sorter") == 0))
-	check = FALSE;
+           strcmp (pspec->name, "sorter") == 0))
+        check = FALSE;
 
 G_GNUC_BEGIN_IGNORE_DEPRECATIONS
 
       if (g_type_is_a (type, GTK_TYPE_COMBO_BOX) &&
-	  (strcmp (pspec->name, "cell-area") == 0 ||
+          (strcmp (pspec->name, "cell-area") == 0 ||
            strcmp (pspec->name, "cell-area-context") == 0))
-	check = FALSE;
+        check = FALSE;
 
 G_GNUC_END_IGNORE_DEPRECATIONS
 
@@ -303,21 +303,21 @@ G_GNUC_END_IGNORE_DEPRECATIONS
        * and buffer gets created on-demand
        */
       if (g_type_is_a (type, GTK_TYPE_ENTRY) &&
-	  (strcmp (pspec->name, "invisible-char") == 0 ||
+          (strcmp (pspec->name, "invisible-char") == 0 ||
            strcmp (pspec->name, "buffer") == 0))
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_TEXT) &&
-	  (strcmp (pspec->name, "invisible-char") == 0 ||
+          (strcmp (pspec->name, "invisible-char") == 0 ||
            strcmp (pspec->name, "buffer") == 0))
-	check = FALSE;
+        check = FALSE;
 
 G_GNUC_BEGIN_IGNORE_DEPRECATIONS
 
       if (g_type_is_a (type, GTK_TYPE_ENTRY_COMPLETION) &&
-	  (strcmp (pspec->name, "cell-area") == 0 ||
+          (strcmp (pspec->name, "cell-area") == 0 ||
            strcmp (pspec->name, "cell-area-context") == 0))
-	check = FALSE;
+        check = FALSE;
 
 G_GNUC_END_IGNORE_DEPRECATIONS
 
@@ -329,8 +329,8 @@ G_GNUC_END_IGNORE_DEPRECATIONS
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_TREE_LIST_MODEL) &&
-	  (strcmp (pspec->name, "item-type") == 0)) /* might be a treelistrow */
-	check = FALSE;
+          (strcmp (pspec->name, "item-type") == 0)) /* might be a treelistrow */
+        check = FALSE;
 
       /* This is set in init() */
       if (g_type_is_a (type, GTK_TYPE_FONT_CHOOSER_WIDGET) &&
@@ -340,30 +340,30 @@ G_GNUC_END_IGNORE_DEPRECATIONS
 G_GNUC_BEGIN_IGNORE_DEPRECATIONS
 
       if (g_type_is_a (type, GTK_TYPE_ICON_VIEW) &&
-	  (strcmp (pspec->name, "cell-area") == 0 ||
+          (strcmp (pspec->name, "cell-area") == 0 ||
            strcmp (pspec->name, "cell-area-context") == 0))
-	check = FALSE;
+        check = FALSE;
 
 G_GNUC_END_IGNORE_DEPRECATIONS
 
       if (g_type_is_a (type, GTK_TYPE_MESSAGE_DIALOG) &&
           (strcmp (pspec->name, "image") == 0 ||
            strcmp (pspec->name, "message-area") == 0))
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_PANED) &&
-	  strcmp (pspec->name, "max-position") == 0)
-	check = FALSE;
+          strcmp (pspec->name, "max-position") == 0)
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_PRINT_OPERATION) &&
-	  strcmp (pspec->name, "job-name") == 0)
-	check = FALSE;
+          strcmp (pspec->name, "job-name") == 0)
+        check = FALSE;
 
 #ifdef G_OS_UNIX
       if (g_type_is_a (type, GTK_TYPE_PRINT_UNIX_DIALOG) &&
-	  (strcmp (pspec->name, "page-setup") == 0 ||
-	   strcmp (pspec->name, "print-settings") == 0))
-	check = FALSE;
+          (strcmp (pspec->name, "page-setup") == 0 ||
+           strcmp (pspec->name, "print-settings") == 0))
+        check = FALSE;
 #endif
 
       if (g_type_is_a (type, GTK_TYPE_PROGRESS_BAR) &&
@@ -373,7 +373,7 @@ G_GNUC_END_IGNORE_DEPRECATIONS
       /* filename value depends on $HOME */
       if (g_type_is_a (type, GTK_TYPE_RECENT_MANAGER) &&
           (strcmp (pspec->name, "filename") == 0 ||
-	   strcmp (pspec->name, "size") == 0))
+           strcmp (pspec->name, "size") == 0))
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_SCALE_BUTTON) &&
@@ -381,15 +381,15 @@ G_GNUC_END_IGNORE_DEPRECATIONS
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_SCROLLED_WINDOW) &&
-	  (strcmp (pspec->name, "hadjustment") == 0 ||
+          (strcmp (pspec->name, "hadjustment") == 0 ||
            strcmp (pspec->name, "vadjustment") == 0))
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_SETTINGS))
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_SHORTCUT) &&
-	  (strcmp (pspec->name, "action") == 0 ||
+          (strcmp (pspec->name, "action") == 0 ||
            strcmp (pspec->name, "trigger") == 0))
         check = FALSE;
 
@@ -411,9 +411,9 @@ G_GNUC_END_IGNORE_DEPRECATIONS
       if (g_type_is_a (type, GTK_TYPE_TEXT_TAG) &&
           (strcmp (pspec->name, "background-gdk") == 0 ||
            strcmp (pspec->name, "foreground-gdk") == 0 ||
-	   strcmp (pspec->name, "language") == 0 ||
-	   strcmp (pspec->name, "font") == 0 ||
-	   strcmp (pspec->name, "font-desc") == 0))
+           strcmp (pspec->name, "language") == 0 ||
+           strcmp (pspec->name, "font") == 0 ||
+           strcmp (pspec->name, "font-desc") == 0))
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_TEXT_VIEW) &&
@@ -421,25 +421,25 @@ G_GNUC_END_IGNORE_DEPRECATIONS
         check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_TREE_VIEW) &&
-	  (strcmp (pspec->name, "hadjustment") == 0 ||
+          (strcmp (pspec->name, "hadjustment") == 0 ||
            strcmp (pspec->name, "vadjustment") == 0))
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_TREE_VIEW_COLUMN) &&
-	  (strcmp (pspec->name, "cell-area") == 0 ||
+          (strcmp (pspec->name, "cell-area") == 0 ||
            strcmp (pspec->name, "cell-area-context") == 0))
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_VIEWPORT) &&
-	  (strcmp (pspec->name, "hadjustment") == 0 ||
+          (strcmp (pspec->name, "hadjustment") == 0 ||
            strcmp (pspec->name, "vadjustment") == 0))
-	check = FALSE;
+        check = FALSE;
 
       if (g_type_is_a (type, GTK_TYPE_WIDGET) &&
           (strcmp (pspec->name, "name") == 0 ||
-	   strcmp (pspec->name, "display") == 0 ||
-	   strcmp (pspec->name, "style") == 0))
-	check = FALSE;
+           strcmp (pspec->name, "display") == 0 ||
+           strcmp (pspec->name, "style") == 0))
+        check = FALSE;
 
       /* resize-grip-visible is determined at runtime */
       if (g_type_is_a (type, GTK_TYPE_WINDOW) &&
@@ -559,10 +559,10 @@ main (int argc, char **argv)
         continue;
 
       testname = g_strdup_printf ("/Default Values/%s",
-				  g_type_name (otypes[i]));
+                                  g_type_name (otypes[i]));
       g_test_add_data_func (testname,
                             &otypes[i],
-			    test_type);
+                            test_type);
       g_free (testname);
     }