diff --git a/qutebrowser/browser/commands.py b/qutebrowser/browser/commands.py
index aa0ad0a36..d9122f869 100644
--- a/qutebrowser/browser/commands.py
+++ b/qutebrowser/browser/commands.py
@@ -1091,8 +1091,7 @@ class CommandDispatcher:
         cmdutils.check_overflow(new_idx, 'int')
         self._tabbed_browser.setUpdatesEnabled(False)
         try:
-            color = self._tabbed_browser.tabBar().tab_data(
-                cur_idx, 'indicator-color')
+            color = self._tabbed_browser.tab_indicator_color(cur_idx)
             self._tabbed_browser.removeTab(cur_idx)
             self._tabbed_browser.insertTab(new_idx, tab, icon, label)
             self._set_current_index(new_idx)
diff --git a/qutebrowser/browser/webengine/webenginetab.py b/qutebrowser/browser/webengine/webenginetab.py
index 46921d455..c66f3fe2e 100644
--- a/qutebrowser/browser/webengine/webenginetab.py
+++ b/qutebrowser/browser/webengine/webenginetab.py
@@ -150,11 +150,11 @@ class WebEngineCaret(browsertab.AbstractCaret):
 
     @pyqtSlot(usertypes.KeyMode)
     def _on_mode_entered(self, mode):
-        log.stub()
+        pass
 
     @pyqtSlot(usertypes.KeyMode)
     def _on_mode_left(self):
-        log.stub()
+        pass
 
     def move_to_next_line(self, count=1):
         log.stub()
diff --git a/qutebrowser/mainwindow/tabwidget.py b/qutebrowser/mainwindow/tabwidget.py
index c12b88952..50ab0af92 100644
--- a/qutebrowser/mainwindow/tabwidget.py
+++ b/qutebrowser/mainwindow/tabwidget.py
@@ -109,6 +109,10 @@ class TabWidget(QTabWidget):
 
         bar.refresh()
 
+    def tab_indicator_color(self, idx):
+        """Get the tab indicator color for the given index."""
+        return self.tabBar().tab_indicator_color(idx)
+
     def set_page_title(self, idx, title):
         """Set the tab title user data."""
         self.tabBar().set_tab_data(idx, 'page-title', title)
@@ -361,6 +365,13 @@ class TabBar(QTabBar):
             data = {}
         return data[key]
 
+    def tab_indicator_color(self, idx):
+        """Get the tab indicator color for the given index."""
+        try:
+            return self.tab_data(idx, 'indicator-color')
+        except KeyError:
+            return QColor()
+
     def page_title(self, idx):
         """Get the tab title user data.
 
@@ -529,10 +540,7 @@ class TabBar(QTabBar):
             tab.palette.setColor(QPalette.Window, bg_color)
             tab.palette.setColor(QPalette.WindowText, fg_color)
 
-            try:
-                indicator_color = self.tab_data(idx, 'indicator-color')
-            except KeyError:
-                indicator_color = QColor()
+            indicator_color = self.tab_indicator_color(idx)
             tab.palette.setColor(QPalette.Base, indicator_color)
             if tab.rect.right() < 0 or tab.rect.left() > self.width():
                 # Don't bother drawing a tab if the entire tab is outside of
diff --git a/qutebrowser/utils/typing.py b/qutebrowser/utils/typing.py
index ff73c25a0..dca42acd6 100644
--- a/qutebrowser/utils/typing.py
+++ b/qutebrowser/utils/typing.py
@@ -38,10 +38,6 @@ class FakeTypingMeta(type):
                  **_kwds):
         pass
 
-    def __subclasscheck__(self, cls):
-        """We implement this for qutebrowser.commands.command to work."""
-        return isinstance(cls, FakeTypingMeta)
-
 
 class FakeUnionMeta(FakeTypingMeta):
 
diff --git a/tests/unit/utils/test_typing.py b/tests/unit/utils/test_typing.py
index 3beefb424..fc507299c 100644
--- a/tests/unit/utils/test_typing.py
+++ b/tests/unit/utils/test_typing.py
@@ -32,13 +32,23 @@ def pytyping():
 class TestUnion:
 
     def test_python_subclass(self, pytyping):
-        assert issubclass(pytyping.Union[str, int], pytyping.Union)
+        assert (type(pytyping.Union[str, int]) is  # flake8: disable=E721
+                type(pytyping.Union))
 
     def test_qute_subclass(self):
-        assert issubclass(typing.FakeUnion[str, int], typing.FakeUnion)
+        assert (type(typing.FakeUnion[str, int]) is  # flake8: disable=E721
+                type(typing.FakeUnion))
 
     def test_python_params(self, pytyping):
-        assert pytyping.Union[str, int].__union_params__ == (str, int)
+        union = pytyping.Union[str, int]
+        try:
+            assert union.__union_params__ == (str, int)
+        except AttributeError:
+            assert union.__args__ == (str, int)
 
     def test_qute_params(self):
-        assert typing.FakeUnion[str, int].__union_params__ == (str, int)
+        union = typing.FakeUnion[str, int]
+        try:
+            assert union.__union_params__ == (str, int)
+        except AttributeError:
+            assert union.__args__ == (str, int)