fix afterimage

styles/Preset_Ordinal_Scale_UI_bottom/Style.qml

@@ -92,7 +92,7 @@ StyleAPI {
 
         this_phase = (this_phase+this_speed)%(Math.PI*64);
 
-        context.clearRect(0, 0, width, height);
+        context.clearRect(0, 0, width+32, height+32);
 
         drawLine(this_delta*trebleAmRatio*trebleAm, trebleColor, 1.5, this_phase, false);
         drawLine(this_delta*bassAmRatio*bassAm, bassColor, 1.5, this_phase+0.8, false);

styles/Preset_circle/Style.qml

@@ -112,7 +112,7 @@ StyleAPI {
                 }
             }
         }
-        context.clearRect(0, 0, width, height);
+        context.clearRect(0, 0, width+32, height+32);
         createPoint();
 
         context.beginPath();

styles/Preset_line/Style.qml

@@ -113,7 +113,7 @@ StyleAPI {
         let _dx = Math.round(_ux/2);
         let _y = halfHeight-_y_dy
 
-        context.clearRect(0, 0, width, height);
+        context.clearRect(0, 0, width+32, height+32);
 
         if(lineRotateFlag || centerRotateFlag) {
             context.transform(1, centerRotateFlag*centerRotateAngle * degUnit, -lineRotateFlag*lineRotateAngle * degUnit, 1, lineRotateFlag*Math.sin(1.05*lineRotateAngle*degUnit)*_y, 0);

styles/Preset_solidcircle/Style.qml

@@ -113,7 +113,7 @@ StyleAPI {
             }
         }
 
-        context.clearRect(0, 0, width, height);
+        context.clearRect(0, 0, width+32, height+32);
         createPoint();
 
         context.beginPath();

styles/Preset_waves/Style.qml

@@ -39,7 +39,7 @@ StyleAPI {
             }
         }
 
-        context.clearRect(0, 0, width, height);
+        context.clearRect(0, 0, width+32, height+32);
 
         context.beginPath();
         context.moveTo(0, halfHeight);