Change: Default widget text colour to black.

TC_FROMSTRING really means blue, and we almost never actually use
blue text.

src/network/network_chat_gui.cpp

@@ -508,7 +508,7 @@ static const NWidgetPart _nested_chat_window_widgets[] = {
 		NWidget(WWT_CLOSEBOX, COLOUR_GREY, WID_NC_CLOSE),
 		NWidget(WWT_PANEL, COLOUR_GREY, WID_NC_BACKGROUND),
 			NWidget(NWID_HORIZONTAL),
-				NWidget(WWT_TEXT, COLOUR_GREY, WID_NC_DESTINATION), SetMinimalSize(62, 12), SetPadding(1, 0, 1, 0), SetTextColour(TC_BLACK), SetAlignment(SA_TOP | SA_RIGHT), SetDataTip(STR_NULL, STR_NULL),
+				NWidget(WWT_TEXT, COLOUR_GREY, WID_NC_DESTINATION), SetMinimalSize(62, 12), SetPadding(1, 0, 1, 0), SetAlignment(SA_TOP | SA_RIGHT), SetDataTip(STR_NULL, STR_NULL),
 				NWidget(WWT_EDITBOX, COLOUR_GREY, WID_NC_TEXTBOX), SetMinimalSize(100, 12), SetPadding(1, 0, 1, 0), SetResize(1, 0),
 																	SetDataTip(STR_NETWORK_CHAT_OSKTITLE, STR_NULL),
 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_NC_SENDBUTTON), SetMinimalSize(62, 12), SetPadding(1, 0, 1, 0), SetDataTip(STR_NETWORK_CHAT_SEND, STR_NULL),

src/widget.cpp

@@ -940,7 +940,7 @@ NWidgetCore::NWidgetCore(WidgetType tp, Colours colour, uint fill_x, uint fill_y
 	this->widget_data = widget_data;
 	this->tool_tip = tool_tip;
 	this->scrollbar_index = -1;
-	this->text_colour = TC_FROMSTRING;
+	this->text_colour = TC_BLACK;
 	this->align = SA_CENTER;
 }