Original patch from McZapkie

src/vehicle_gui.cpp

@@ -1452,6 +1452,16 @@ void BaseVehicleListWindow::DrawVehicleListItems(VehicleID selected_vehicle, int
 		DrawVehicleImage(v, image_left, image_right, y + FONT_HEIGHT_SMALL - 1, selected_vehicle, EIT_IN_LIST, 0);
 		DrawString(text_left, text_right, y + line_height - FONT_HEIGHT_SMALL - WD_FRAMERECT_BOTTOM - 1, STR_VEHICLE_LIST_PROFIT_THIS_YEAR_LAST_YEAR);
 
+		/* company colour stripe along vehicle description row */
+		if (_settings_game.economy.infrastructure_sharing[VEH_TRAIN] || _settings_game.economy.infrastructure_sharing[VEH_ROAD] || _settings_game.economy.infrastructure_sharing[VEH_SHIP] || _settings_game.economy.infrastructure_sharing[VEH_AIRCRAFT]) {
+			byte ccolour = 0;
+			Company *c = Company::Get(v->owner);
+			if (c != NULL) {
+				ccolour = _colour_gradient[c->colour][6];
+			}
+			GfxFillRect(text_left, y, text_right, y + FONT_HEIGHT_SMALL - 2, ccolour, FILLRECT_OPAQUE);
+		}
+
 		if (v->name != NULL) {
 			/* The vehicle got a name so we will print it */
 			SetDParam(0, v->index);