[PowerStatus] Fixes some drawing glitches

* Fixes the position of the lightning over the battery
* Fixes the selection in the info Window (Why is the selected color hardcoded?)
* Fixes #13784

src/apps/powerstatus/ExtendedInfoWindow.cpp

@@ -279,11 +279,12 @@ ExtPowerStatusView::ExtPowerStatusView(PowerStatusDriverInterface* interface,
 void
 ExtPowerStatusView::Draw(BRect updateRect)
 {
-	if (fSelected)
+	if (fSelected) {
+		rgb_color lowColor = LowColor();
 		SetLowColor(102, 152, 203);
-	else
-		SetLowColor(ui_color(B_PANEL_BACKGROUND_COLOR));
-
+		FillRect(updateRect, B_SOLID_LOW);
+		SetLowColor(lowColor);
+	}
 	PowerStatusView::Draw(updateRect);
 }
 

src/apps/powerstatus/PowerStatusView.cpp

@@ -163,6 +163,7 @@ PowerStatusView::MessageReceived(BMessage *message)
 void
 PowerStatusView::_DrawBattery(BRect rect)
 {
+	BRect lightningRect = rect;
 	float quarter = floorf((rect.Height() + 1) / 4);
 	rect.top += quarter;
 	rect.bottom -= quarter;
@@ -246,7 +247,7 @@ PowerStatusView::_DrawBattery(BRect rect)
 		// When charging, draw a lightning symbol over the battery.
 		SetHighColor(255, 255, 0, 180);
 		SetDrawingMode(B_OP_ALPHA);
-		SetScale(std::min(Bounds().Width(), Bounds().Height()) / 16);
+		SetScale(std::min(lightningRect.Width(), lightningRect.Height()) / 16);
 
 		static const BPoint points[] = {
 			BPoint(3, 14),