diff --git a/Common/UI/Context.cpp b/Common/UI/Context.cpp
index dcd81437f9..9975281793 100644
--- a/Common/UI/Context.cpp
+++ b/Common/UI/Context.cpp
@@ -237,8 +237,8 @@ void UIContext::FillRect(const UI::Drawable &drawable, const Bounds &bounds) {
 	} 
 }
 
-void UIContext::FillRectVGradient(uint32_t color1, uint32_t color2, const Bounds &bounds) {
-	uidrawbuffer_->DrawImageStretchVGradient(theme->whiteImage, bounds.x, bounds.y, bounds.x2(), bounds.y2(), color1, color2);
+void UIContext::DrawImageVGradient(ImageID image, uint32_t color1, uint32_t color2, const Bounds &bounds) {
+	uidrawbuffer_->DrawImageStretchVGradient(image, bounds.x, bounds.y, bounds.x2(), bounds.y2(), color1, color2);
 }
 
 void UIContext::PushTransform(const UITransform &transform) {
diff --git a/Common/UI/Context.h b/Common/UI/Context.h
index cac554fabe..944d31e4d8 100644
--- a/Common/UI/Context.h
+++ b/Common/UI/Context.h
@@ -85,7 +85,7 @@ public:
 	void DrawTextShadow(const char *str, float x, float y, uint32_t color, int align = 0);
 	void DrawTextRect(const char *str, const Bounds &bounds, uint32_t color, int align = 0);
 	void FillRect(const UI::Drawable &drawable, const Bounds &bounds);
-	void FillRectVGradient(uint32_t color1, uint32_t color2, const Bounds &bounds);
+	void DrawImageVGradient(ImageID image, uint32_t color1, uint32_t color2, const Bounds &bounds);
 
 	// in dps, like dp_xres and dp_yres
 	void SetBounds(const Bounds &b) { bounds_ = b; }
diff --git a/UI/GPUDriverTestScreen.cpp b/UI/GPUDriverTestScreen.cpp
index 610d44297e..2ea83cb63c 100644
--- a/UI/GPUDriverTestScreen.cpp
+++ b/UI/GPUDriverTestScreen.cpp
@@ -543,17 +543,17 @@ void GPUDriverTestScreen::ShaderTest() {
 	y += 100;
 
 	dc.Begin();
-	dc.DrawText("Flat shading", x, y, 0xFFFFFFFF, FLAG_DYNAMIC_ASCII);
+	dc.DrawText("Flat shaded tex", x, y, 0xFFFFFFFF, FLAG_DYNAMIC_ASCII);
 	dc.DrawText("(TEST OK if no gradient!)", x + 400, y, 0xFFFFFFFF, ALIGN_LEFT);
 	dc.Flush();
 
-	bounds = { x + 200, y, testW, 70 };
+	bounds = { x + 200, y, 100, 100 };
 
 	// Draw rectangle that should be flat shaded
 	dc.BeginPipeline(flatShadingPipeline_, samplerNearest_);
 	// There is a "provoking vertex" difference here between GL and Vulkan when using flat shading. One gets one color, one gets the other.
 	// Wherever possible we should reconfigure the GL provoking vertex to match Vulkan, probably.
-	dc.FillRectVGradient(bgColorOK, textColorOK, bounds);
+	dc.DrawImageVGradient(ImageID("I_ICON"), 0xFFFFFFFF, 0x808080FF, bounds);
 	dc.Flush();
 }
 
diff --git a/ffmpeg b/ffmpeg
index 0b28335ace..4738685f4a 160000
--- a/ffmpeg
+++ b/ffmpeg
@@ -1 +1 @@
-Subproject commit 0b28335acea4f429ae798c5e75232e54881bf164
+Subproject commit 4738685f4ac27c1775a238d1e602f399627b5e6f