diff --git a/src/openrct2/interface/Widget.cpp b/src/openrct2/interface/Widget.cpp
index 957c2fa4af..ea2d449a86 100644
--- a/src/openrct2/interface/Widget.cpp
+++ b/src/openrct2/interface/Widget.cpp
@@ -124,10 +124,8 @@ void widget_draw(rct_drawpixelinfo *dpi, rct_window *w, rct_widgetindex widgetIn
         widget_resize_draw(dpi, w, widgetIndex);
         break;
     case WWT_IMGBTN:
-    case WWT_4:
         widget_button_draw(dpi, w, widgetIndex);
         break;
-    case WWT_5:
     case WWT_COLOURBTN:
     case WWT_TRNBTN:
     case WWT_TAB:
@@ -137,7 +135,6 @@ void widget_draw(rct_drawpixelinfo *dpi, rct_window *w, rct_widgetindex widgetIn
         widget_flat_button_draw(dpi, w, widgetIndex);
         break;
     case WWT_DROPDOWN_BUTTON:
-    case WWT_11:
     case WWT_TABLE_HEADER:
         widget_text_button(dpi, w, widgetIndex);
         break;
@@ -152,8 +149,6 @@ void widget_draw(rct_drawpixelinfo *dpi, rct_window *w, rct_widgetindex widgetIn
     case WWT_VIEWPORT:
         widget_text_inset(dpi, w, widgetIndex);
         break;
-    case WWT_18:
-        break;
     case WWT_GROUPBOX:
         widget_groupbox_draw(dpi, w, widgetIndex);
         break;
@@ -406,10 +401,6 @@ static void widget_text_unknown(rct_drawpixelinfo *dpi, rct_window *w, rct_widge
     if (stringId == STR_NONE)
         return;
 
-    if (widget->type == WWT_11 && (widget_is_pressed(w, widgetIndex) || widget_is_active_tool(w, widgetIndex)))
-        // TODO: remove string addition
-        stringId++;
-
     if (widget->type == WWT_TABLE_HEADER) {
         if (widget_is_disabled(w, widgetIndex))
             colour |= COLOUR_FLAG_INSET;
@@ -816,7 +807,7 @@ static void widget_draw_image(rct_drawpixelinfo *dpi, rct_window *w, rct_widgeti
     // Get the colour
     uint8 colour = NOT_TRANSLUCENT(w->colours[widget->colour]);
 
-    if (widget->type == WWT_4 || widget->type == WWT_COLOURBTN || widget->type == WWT_TRNBTN || widget->type == WWT_TAB)
+    if (widget->type == WWT_COLOURBTN || widget->type == WWT_TRNBTN || widget->type == WWT_TAB)
         if (widget_is_pressed(w, widgetIndex) || widget_is_active_tool(w, widgetIndex))
             image++;
 
diff --git a/src/openrct2/interface/Widget.h b/src/openrct2/interface/Widget.h
index 7b127e5e60..0eae18ebf2 100644
--- a/src/openrct2/interface/Widget.h
+++ b/src/openrct2/interface/Widget.h
@@ -24,21 +24,17 @@ typedef enum {
     WWT_FRAME = 1,
     WWT_RESIZE = 2,
     WWT_IMGBTN = 3,
-    WWT_4 = 4, // Same as IMGBTN but uses .image + 1 while pressed/active
-    WWT_5 = 5,
     WWT_COLOURBTN = 6,
     WWT_TRNBTN = 7,
     WWT_TAB = 8,
     WWT_FLATBTN = 9,
     WWT_DROPDOWN_BUTTON = 10,
-    WWT_11, // Same as dropdown button but uses .text + 1 while pressed/active
     WWT_LABEL_CENTRED = 12,    // Centred text
     WWT_TABLE_HEADER = 13,     // Left-aligned textual button
     WWT_LABEL = 14,            // Left-aligned text
     WWT_SPINNER = 15,
     WWT_DROPDOWN = 16,
     WWT_VIEWPORT = 17,
-    WWT_18,
     WWT_GROUPBOX = 19,
     WWT_CAPTION = 20,
     WWT_CLOSEBOX = 21,
diff --git a/src/openrct2/interface/Window.cpp b/src/openrct2/interface/Window.cpp
index 7e3c9d3eac..fc19d719e0 100644
--- a/src/openrct2/interface/Window.cpp
+++ b/src/openrct2/interface/Window.cpp
@@ -2254,7 +2254,7 @@ static void window_invalidate_pressed_image_buttons(rct_window *w)
 
     widgetIndex = 0;
     for (widget = w->widgets; widget->type != WWT_LAST; widget++, widgetIndex++) {
-        if (widget->type != WWT_5 && widget->type != WWT_IMGBTN)
+        if (widget->type != WWT_IMGBTN)
             continue;
 
         if (widget_is_pressed(w, widgetIndex) || widget_is_active_tool(w, widgetIndex))