fix panel drop feedback in light and hc themes

related to #67880

src/vs/workbench/common/theme.ts

@@ -378,8 +378,8 @@ export const SIDE_BAR_TITLE_FOREGROUND = registerColor('sideBarTitle.foreground'
 
 export const SIDE_BAR_DRAG_AND_DROP_BACKGROUND = registerColor('sideBar.dropBackground', {
 	dark: Color.white.transparent(0.12),
-	light: Color.white.transparent(0.12),
-	hc: Color.white.transparent(0.12),
+	light: Color.black.transparent(0.1),
+	hc: Color.white.transparent(0.3),
 }, nls.localize('sideBarDragAndDropBackground', "Drag and drop feedback color for the side bar sections. The color should have transparency so that the side bar sections can still shine through. The side bar is the container for views like explorer and search."));
 
 export const SIDE_BAR_SECTION_HEADER_BACKGROUND = registerColor('sideBarSectionHeader.background', {