(svn r11507) -Fix [FS#1463]: signs totally illegible when transparant signs is turned on and zoomed out more than one level.

src/lang/english.txt

@@ -1705,6 +1705,7 @@ STR_TOWN_LABEL                                                  :{WHITE}{TOWN}
 STR_TOWN_LABEL_TINY_BLACK                                       :{TINYFONT}{BLACK}{TOWN}
 STR_TOWN_LABEL_TINY_WHITE                                       :{TINYFONT}{WHITE}{TOWN}
 STR_2002                                                        :{TINYFONT}{BLACK}{SIGN}
+STR_2002_WHITE                                                  :{TINYFONT}{WHITE}{SIGN}
 STR_2004_BUILDING_MUST_BE_DEMOLISHED                            :{WHITE}Building must be demolished first
 STR_2005                                                        :{WHITE}{TOWN}
 STR_2006_POPULATION                                             :{BLACK}Population: {ORANGE}{COMMA}{BLACK}  Houses: {ORANGE}{COMMA}

src/viewport.cpp

@@ -1251,7 +1251,7 @@ static void ViewportAddSigns(DrawPixelInfo *dpi)
 						top    < si->sign.top + ScaleByZoom(12, dpi->zoom) &&
 						right  > si->sign.left &&
 						left   < si->sign.left + ScaleByZoom(si->sign.width_2, dpi->zoom)) {
-					AddSign(si, STR_2002, si->sign.width_2 | 0x8000);
+					AddSign(si, IsTransparencySet(TO_SIGNS) ? STR_2002_WHITE : STR_2002, si->sign.width_2 | 0x8000);
 				}
 			}
 			break;