diff --git a/src/emucore/Console.cxx b/src/emucore/Console.cxx
index 35d5da2a4..226d82e86 100644
--- a/src/emucore/Console.cxx
+++ b/src/emucore/Console.cxx
@@ -685,25 +685,22 @@ void Console::updateVcenter(Int32 vcenter)
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 void Console::changeScanlineAdjust(int direction)
 {
-  // Get correct setting, depending on whether we're in NTSC or PAL
-  // Int32 adjust = myOSystem.settings().getInt("tia.adjustscanlines.ntsc");
-
-  float newAdjustScanliens = myTIA->adjustScanlines();;
+  float newVsizeAdjust = myTIA->vsizeAdjust();
 
   if (direction != -1 && direction != +1) return;
 
   if(direction == +1)       // increase scanline adjustment
   {
-    newAdjustScanliens = std::min(myTIA->adjustScanlines() + 0.5f, 5.f);
+    newVsizeAdjust = std::min(myTIA->vsizeAdjust() + 0.5f, 5.f);
   }
   else if(direction == -1)  // decrease scanline adjustment
   {
-    newAdjustScanliens = std::max(myTIA->adjustScanlines() - 0.5f, -5.f);
+    newVsizeAdjust = std::max(myTIA->vsizeAdjust() - 0.5f, -5.f);
   }
 
-  if (newAdjustScanliens != myTIA->adjustScanlines()) {
-      myTIA->setAdjustScanlines(newAdjustScanliens);
-      myOSystem.settings().setValue("tia.adjustscanlines", newAdjustScanliens);
+  if (newVsizeAdjust != myTIA->vsizeAdjust()) {
+      myTIA->setVsizeAdjust(newVsizeAdjust);
+      myOSystem.settings().setValue("tia.vsizeadjust", newVsizeAdjust);
       initializeVideo();
   }
 }
@@ -727,7 +724,7 @@ void Console::setTIAProperties()
     myTIA->setLayout(FrameLayout::pal);
   }
 
-  myTIA->setAdjustScanlines(myOSystem.settings().getFloat("tia.adjustscanlines"));
+  myTIA->setVsizeAdjust(myOSystem.settings().getFloat("tia.vsizeadjust"));
   myTIA->setVcenter(vcenter);
 
   myEmulationTiming.updateFrameLayout(myTIA->frameLayout());
diff --git a/src/emucore/Settings.cxx b/src/emucore/Settings.cxx
index e8f7bbc91..6c6818881 100644
--- a/src/emucore/Settings.cxx
+++ b/src/emucore/Settings.cxx
@@ -50,7 +50,7 @@ Settings::Settings()
   // TIA specific options
   setPermanent("tia.zoom", "3");
   setPermanent("tia.inter", "false");
-  setPermanent("tia.adjustscanlines", 0.f);
+  setPermanent("tia.vsizeadjust", 0.f);
   setPermanent("fullscreen", "false");
   setPermanent("tia.fs_stretch", "false");
   setPermanent("tia.fs_overscan", "0");
@@ -254,8 +254,8 @@ void Settings::validate()
   f = getFloat("speed");
   if (f <= 0) setValue("speed", "1.0");
 
-  i = getFloat("tia.adjustscanlines");
-  if(i < -5. || i > 5.)  setValue("tia.adjustscanlines", 0.f);
+  i = getFloat("tia.vsizeadjust");
+  if(i < -5. || i > 5.)  setValue("tia.vsizeadjust", 0.f);
 
   s = getString("tia.dbgcolors");
   sort(s.begin(), s.end());
@@ -407,7 +407,7 @@ void Settings::usage() const
     << "                                 for TIA image\n"
     << "  -tia.inter     <1|0>          Enable interpolated (smooth) scaling for TIA\n"
     << "                                 image\n"
-    << "  -tia.adjustscanlines <float>  Adjust the visible number if TIA scanlines [percent]\n"
+    << "  -tia.vsizeadjust <float>      Adjust the vertical range of the image [percent]\n"
     << "  -tia.fs_stretch <1|0>         Stretch TIA image to fill fullscreen mode\n"
     << "  -tia.fs_overscan <0-10>       Add overscan to TIA image in fill fullscreen mode\n"
     << "  -tia.dbgcolors <string>       Debug colors to use for each object (see manual\n"
diff --git a/src/emucore/tia/TIA.hxx b/src/emucore/tia/TIA.hxx
index bbd8738e1..0395496d3 100644
--- a/src/emucore/tia/TIA.hxx
+++ b/src/emucore/tia/TIA.hxx
@@ -264,8 +264,8 @@ class TIA : public Device
     void setLayout(FrameLayout layout) { myFrameManager->setLayout(layout); }
     FrameLayout frameLayout() const { return myFrameManager->layout(); }
 
-    void setAdjustScanlines(float adjustScanlines) { myFrameManager->setAdjustScanlines(adjustScanlines); }
-    float adjustScanlines() const { return myFrameManager->adjustScanlines(); }
+    void setVsizeAdjust(float vsizeAdjust) { myFrameManager->setVsizeAdjust(vsizeAdjust); }
+    float vsizeAdjust() const { return myFrameManager->vsizeAdjust(); }
 
     /**
       Enables/disables color-loss for PAL modes only.
diff --git a/src/emucore/tia/frame-manager/AbstractFrameManager.hxx b/src/emucore/tia/frame-manager/AbstractFrameManager.hxx
index 830cfb6fc..f874987bb 100644
--- a/src/emucore/tia/frame-manager/AbstractFrameManager.hxx
+++ b/src/emucore/tia/frame-manager/AbstractFrameManager.hxx
@@ -181,9 +181,9 @@ class AbstractFrameManager : public Serializable
     virtual Int32 maxVcenter() const { return 0; }
 
 
-    virtual void setAdjustScanlines(float adjustScanlines) {}
+    virtual void setVsizeAdjust(float vsizeAdjust) {}
 
-    virtual float adjustScanlines() const { return 0; }
+    virtual float vsizeAdjust() const { return 0; }
 
     /**
      * The corresponding start line.
diff --git a/src/emucore/tia/frame-manager/FrameManager.cxx b/src/emucore/tia/frame-manager/FrameManager.cxx
index 7366f80f3..76b52fd55 100644
--- a/src/emucore/tia/frame-manager/FrameManager.cxx
+++ b/src/emucore/tia/frame-manager/FrameManager.cxx
@@ -121,9 +121,9 @@ void FrameManager::setVcenter(Int32 vcenter)
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-void FrameManager::setAdjustScanlines(float adjustScanlines)
+void FrameManager::setVsizeAdjust(float vsizeAdjust)
 {
-  myAdjustScanlines = adjustScanlines;
+  myVsizeAdjust = vsizeAdjust;
   recalculateMetrics();
 }
 
@@ -244,12 +244,10 @@ void FrameManager::recalculateMetrics() {
       throw runtime_error("frame manager: invalid TV mode");
   }
 
-  myHeight = BSPF::clamp<uInt32>(round(static_cast<float>(baseHeight) * (1.f + myAdjustScanlines / 100.f)), 0, myFrameLines);
+  myHeight = BSPF::clamp<uInt32>(round(static_cast<float>(baseHeight) * (1.f + myVsizeAdjust / 100.f)), 0, myFrameLines);
   myYStart = BSPF::clamp<uInt32>(ystartBase + (baseHeight - static_cast<Int32>(myHeight)) / 2 - myVcenter, 0, myFrameLines);
   // TODO: why "- 1" here: ???
   myMaxVcenter = BSPF::clamp<Int32>(ystartBase + (baseHeight - static_cast<Int32>(myHeight)) / 2 - 1, 0, TIAConstants::maxVcenter);
 
-  cout << myAdjustScanlines << " " << myHeight << endl << std::flush;
-
   myJitterEmulation.setYStart(myYStart);
 }
diff --git a/src/emucore/tia/frame-manager/FrameManager.hxx b/src/emucore/tia/frame-manager/FrameManager.hxx
index 5e1cd1c68..d5f3c6ec6 100644
--- a/src/emucore/tia/frame-manager/FrameManager.hxx
+++ b/src/emucore/tia/frame-manager/FrameManager.hxx
@@ -52,9 +52,9 @@ class FrameManager: public AbstractFrameManager {
 
     Int32 maxVcenter() const override { return myMaxVcenter; }
 
-    void setAdjustScanlines(float adjustScanlines) override;
+    void setVsizeAdjust(float vsizeAdjust) override;
 
-    float adjustScanlines() const override { return myAdjustScanlines; }
+    float vsizeAdjust() const override { return myVsizeAdjust; }
 
     uInt32 startLine() const override { return myYStart; }
 
@@ -102,7 +102,7 @@ class FrameManager: public AbstractFrameManager {
     uInt32 myYStart{0};
     Int32 myVcenter{0};
     Int32 myMaxVcenter{0};
-    float myAdjustScanlines{0.f};
+    float myVsizeAdjust{0.f};
 
     bool myJitterEnabled{false};
 
diff --git a/src/gui/VideoDialog.cxx b/src/gui/VideoDialog.cxx
index ac6bb2826..17201cea6 100644
--- a/src/gui/VideoDialog.cxx
+++ b/src/gui/VideoDialog.cxx
@@ -136,12 +136,12 @@ VideoDialog::VideoDialog(OSystem& osystem, DialogContainer& parent,
   ypos += lineHeight + VGAP;
 
   // Aspect ratio (NTSC mode)
-  myAdjustScanlines =
+  myVsizeAdjust =
     new SliderWidget(myTab, font, xpos, ypos-1, swidth, lineHeight,
-                     "Scanlines adjust ", lwidth, 0, fontWidth * 4, "", 0, true);
-  myAdjustScanlines->setMinValue(-50); myAdjustScanlines->setMaxValue(50);
-  myAdjustScanlines->setTickmarkIntervals(5);
-  wid.push_back(myAdjustScanlines);
+                     "V-Size adjust ", lwidth, 0, fontWidth * 4, "", 0, true);
+  myVsizeAdjust->setMinValue(-50); myVsizeAdjust->setMaxValue(50);
+  myVsizeAdjust->setTickmarkIntervals(5);
+  wid.push_back(myVsizeAdjust);
   ypos += lineHeight + VGAP;
 
   // Speed
@@ -342,8 +342,8 @@ void VideoDialog::loadConfig()
   myTIAInterpolate->setState(instance().settings().getBool("tia.inter"));
 
   // Aspect ratio setting (NTSC and PAL)
-  myAdjustScanlines->setValue(
-    round(instance().settings().getFloat("tia.adjustscanlines") * 10)
+  myVsizeAdjust->setValue(
+    round(instance().settings().getFloat("tia.vsizeadjust") * 10)
   );
 
   // Emulation speed
@@ -416,8 +416,8 @@ void VideoDialog::saveConfig()
   instance().settings().setValue("tia.inter", myTIAInterpolate->getState());
 
   // Aspect ratio setting (NTSC and PAL)
-  instance().settings().setValue("tia.adjustscanlines",
-    static_cast<float>(myAdjustScanlines->getValue()) / 10.f
+  instance().settings().setValue("tia.vsizeadjust",
+    static_cast<float>(myVsizeAdjust->getValue()) / 10.f
   );
 
   // Speed
@@ -498,7 +498,7 @@ void VideoDialog::setDefaults()
       myTIAZoom->setValue(300);
       myTIAPalette->setSelected("standard", "");
       myTIAInterpolate->setState(false);
-      myAdjustScanlines->setValue(0);
+      myVsizeAdjust->setValue(0);
       mySpeed->setValue(0);
 
       myFullscreen->setState(false);
diff --git a/src/gui/VideoDialog.hxx b/src/gui/VideoDialog.hxx
index 0af3abc5f..83be58716 100644
--- a/src/gui/VideoDialog.hxx
+++ b/src/gui/VideoDialog.hxx
@@ -58,7 +58,7 @@ class VideoDialog : public Dialog
     SliderWidget*     myTIAZoom{nullptr};
     PopUpWidget*      myTIAPalette{nullptr};
     CheckboxWidget*   myTIAInterpolate{nullptr};
-    SliderWidget*     myAdjustScanlines{nullptr};
+    SliderWidget*     myVsizeAdjust{nullptr};
     SliderWidget*     mySpeed{nullptr};
 
     CheckboxWidget*   myFullscreen{nullptr};
diff --git a/src/libretro/StellaLIBRETRO.cxx b/src/libretro/StellaLIBRETRO.cxx
index b518828f3..673bc97f2 100644
--- a/src/libretro/StellaLIBRETRO.cxx
+++ b/src/libretro/StellaLIBRETRO.cxx
@@ -90,7 +90,7 @@ bool StellaLIBRETRO::create(bool logging)
 
   settings.setValue("tia.zoom", 1);
   settings.setValue("tia.inter", false);
-  settings.setValue("tia.", 0.f);
+  settings.setValue("tia.vsizeadjust", 0.f);
 
   //fastscbios
   // Fast loading of Supercharger BIOS