diff --git a/gui/brusheditor.glade b/gui/brusheditor.glade
index 23cf0bd1e..5d0b3a44c 100644
--- a/gui/brusheditor.glade
+++ b/gui/brusheditor.glade
@@ -432,7 +432,7 @@
                       </packing>
                     </child>
                     <child>
-                      <object class="GtkScale" id="base_value_scale">
+                      <object class="InputSlider" id="base_value_scale">
                         <property name="width_request">200</property>
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
@@ -755,7 +755,7 @@ Use the popup scale to adjust this.</property>
                       </packing>
                     </child>
                     <child>
-                      <object class="GtkScale" id="by{name}_scale">
+                      <object class="InputSlider" id="by{name}_scale">
                         <property name="width_request">200</property>
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
diff --git a/gui/brusheditor.py b/gui/brusheditor.py
index 9cff00ee1..cc502d01d 100644
--- a/gui/brusheditor.py
+++ b/gui/brusheditor.py
@@ -33,6 +33,10 @@
 from .builderhacks import add_objects_from_template_string
 from .windowing import SubWindow
 
+# The widget class needs to be in scope before it is
+# instantiated via the loading of the glade file.
+from .sliderwidget import InputSlider  # noqa
+
 logger = logging.getLogger(__name__)
 
 
diff --git a/gui/fill.py b/gui/fill.py
index f9e8b664d..3b459cfeb 100644
--- a/gui/fill.py
+++ b/gui/fill.py
@@ -26,6 +26,7 @@
 from gui.blendmodehandler import BlendModes
 import gui.layers
 import gui.overlays
+from gui.sliderwidget import InputSlider
 
 import lib.eotf
 import lib.floodfill
@@ -521,9 +522,8 @@ def __init__(self):
                              page_size=0)
         adj.connect("value-changed", self._tolerance_changed_cb)
         self._tolerance_adj = adj
-        scale = Gtk.Scale()
+        scale = InputSlider(adj)
         scale.set_hexpand(True)
-        scale.set_adjustment(adj)
         scale.set_draw_value(False)
         self.attach(scale, 1, row, 1, 1)
 
@@ -712,7 +712,7 @@ def sep_func(model, it):
                              page_size=0)
         adj.connect("value-changed", self._opacity_changed_cb)
         self._opacity_adj = adj
-        scale = Gtk.Scale()
+        scale = InputSlider()
         scale.set_hexpand(True)
         scale.set_adjustment(adj)
         scale.set_draw_value(False)
diff --git a/gui/freehand.py b/gui/freehand.py
index 014cfdcf8..d912a05f7 100644
--- a/gui/freehand.py
+++ b/gui/freehand.py
@@ -26,6 +26,7 @@
 from lib.helpers import clamp
 import gui.mode
 from .drawutils import spline_4p
+from .sliderwidget import InputSlider
 
 logger = logging.getLogger(__name__)
 
@@ -585,7 +586,7 @@ def init_specialized_widgets(self, row):
         label.set_hexpand(False)
         self.adjustable_settings.add(cname)
         adj = self.app.brush_adjustment[cname]
-        scale = Gtk.Scale.new(Gtk.Orientation.HORIZONTAL, adj)
+        scale = InputSlider(adj)
         scale.set_draw_value(False)
         scale.set_hexpand(True)
         self.attach(label, 0, row, 1, 1)
@@ -603,7 +604,7 @@ def init_specialized_widgets(self, row):
                              step_increment=0.01, page_increment=0.1)
         self.app.fake_adjustment['fakepressure'] = adj
         adj.connect("value-changed", changed_cb)
-        scale = Gtk.Scale.new(Gtk.Orientation.HORIZONTAL, adj)
+        scale = InputSlider(adj)
         scale.set_draw_value(False)
         scale.set_hexpand(True)
         self.attach(label, 0, row, 1, 1)
@@ -621,7 +622,7 @@ def init_specialized_widgets(self, row):
                              step_increment=0.0625, page_increment=0.25)
         self.app.fake_adjustment['fakerotation'] = adj
         adj.connect("value-changed", changed_cb)
-        scale = Gtk.Scale.new(Gtk.Orientation.HORIZONTAL, adj)
+        scale = InputSlider(adj)
         scale.set_draw_value(False)
         scale.set_hexpand(True)
         self.attach(label, 0, row, 1, 1)
diff --git a/gui/inktool.glade b/gui/inktool.glade
index ca04da7f9..df2f4ef00 100644
--- a/gui/inktool.glade
+++ b/gui/inktool.glade
@@ -2,6 +2,7 @@
 <!-- Generated with glade 3.16.1 -->
 <interface>
   <requires lib="gtk+" version="3.10"/>
+  <requires lib="mypaint_widgets" version="3.0"/>
   <object class="GtkAdjustment" id="dtime_adj">
     <property name="upper">2</property>
     <property name="step_increment">0.10000000000000001</property>
@@ -55,7 +56,7 @@
           </packing>
         </child>
         <child>
-          <object class="GtkScale" id="pressure_scale">
+          <object class="InputSlider" id="pressure_scale">
             <property name="width_request">150</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
@@ -116,7 +117,7 @@ Negative values mean leftwards tilts.</property>
           </packing>
         </child>
         <child>
-          <object class="GtkScale" id="xtilt_scale">
+          <object class="InputSlider" id="xtilt_scale">
             <property name="width_request">150</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
@@ -137,7 +138,7 @@ Negative values mean leftwards tilts.</property>
           </packing>
         </child>
         <child>
-          <object class="GtkScale" id="ytilt_scale">
+          <object class="InputSlider" id="ytilt_scale">
             <property name="width_request">150</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
@@ -178,7 +179,7 @@ Negative values mean leftwards tilts.</property>
           </packing>
         </child>
         <child>
-          <object class="GtkScale" id="dtime_scale">
+          <object class="InputSlider" id="dtime_scale">
             <property name="width_request">150</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
diff --git a/gui/mode.py b/gui/mode.py
index ddc46f6f9..9451e174a 100644
--- a/gui/mode.py
+++ b/gui/mode.py
@@ -15,6 +15,8 @@
 import math
 from gettext import gettext as _
 
+from gui.sliderwidget import InputSlider
+
 from lib.gibindings import Gtk
 from lib.gibindings import Gdk
 from lib.gibindings import GLib
@@ -611,7 +613,7 @@ def init_common_widgets(self, row):
             label.set_hexpand(False)
             self.adjustable_settings.add(cname)
             adj = self.app.brush_adjustment[cname]
-            scale = Gtk.Scale.new(Gtk.Orientation.HORIZONTAL, adj)
+            scale = InputSlider(adj)
             scale.set_draw_value(False)
             scale.set_hexpand(True)
             self.attach(label, 0, row, 1, 1)
diff --git a/gui/symmetry.py b/gui/symmetry.py
index ee40c844f..d7953e69a 100644
--- a/gui/symmetry.py
+++ b/gui/symmetry.py
@@ -22,6 +22,7 @@
 import gui.windowing
 import gui.tileddrawwidget
 import lib.alg
+from gui.sliderwidget import InputSlider
 from lib.helpers import clamp
 import lib.mypaintlib
 from lib.mypaintlib import (
@@ -506,18 +507,15 @@ def _init_ui(self):
         label.set_hexpand(False)
         label.set_halign(Gtk.Align.START)
         grid.attach(label, 0, row, 1, 1)
-        scale = Gtk.Scale.new_with_range(
-            orientation = Gtk.Orientation.HORIZONTAL,
-            min = 0,
-            max = 1,
-            step = 0.1,
-        )
+        scale = InputSlider()
+        scale.set_range(0, 1)
+        scale.set_round_digits(1)
         scale.set_draw_value(False)
         line_alpha = self.app.preferences.get(_ALPHA_PREFS_KEY, _DEFAULT_ALPHA)
         scale.set_value(line_alpha)
         scale.set_hexpand(True)
         scale.set_vexpand(False)
-        scale.connect("value-changed", self._scale_value_changed_cb)
+        scale.scale.connect("value-changed", self._scale_value_changed_cb)
         grid.attach(scale, 1, row, 1, 1)
 
         row += 1
@@ -587,9 +585,7 @@ def _init_ui(self):
         self._angle_label = label
         self._update_angle_label()
         grid.attach(label, 0, row, 1, 1)
-        scale = Gtk.Scale(
-            orientation=Gtk.Orientation.HORIZONTAL,
-            adjustment=self._axis_angle)
+        scale = InputSlider(self._axis_angle)
         scale.set_draw_value(False)
         scale.set_hexpand(True)
         scale.set_vexpand(False)