Give all views a bool popupStyle_, so they know the context.

Common/UI/UIScreen.cpp

@@ -430,11 +430,15 @@ void PopupScreen::CreateViews() {
 	box_->SetSpacing(0.0f);
 
 	if (HasTitleBar()) {
-		View* title = new PopupHeader(title_);
+		View *title = new PopupHeader(title_);
 		box_->Add(title);
 	}
 
 	CreatePopupContents(box_);
+	root_->Recurse([](View *view) {
+		view->SetPopupStyle(true);
+	});
+
 	root_->SetDefaultFocusView(box_);
 	if (ShowButtons() && !button1_.empty()) {
 		// And the two buttons at the bottom.

Common/UI/View.h

@@ -429,6 +429,8 @@ public:
 	virtual bool CanBeFocused() const { return true; }
 	virtual bool SubviewFocused(View *view) { return false; }
 
+	void SetPopupStyle(bool popupStyle) { popupStyle_ = popupStyle; }
+
 	bool HasFocus() const {
 		return GetFocusedView() == this;
 	}
@@ -480,6 +482,8 @@ public:
 		return t;
 	}
 
+	virtual void Recurse(void (*func)(View *view)) {}
+
 protected:
 	// Inputs to layout
 	std::unique_ptr<LayoutParams> layoutParams_;
@@ -496,6 +500,9 @@ protected:
 
 	std::vector<Tween *> tweens_;
 
+	// Whether to use popup colors for styling.
+	bool popupStyle_ = false;
+
 private:
 	std::function<bool()> enabledFunc_;
 	bool *enabledPtr_ = nullptr;
@@ -851,11 +858,9 @@ public:
 	std::string DescribeText() const override;
 	void GetContentDimensionsBySpec(const UIContext &dc, MeasureSpec horiz, MeasureSpec vert, float &w, float &h) const override;
 	void SetLarge(bool large) { large_ = large; }
-	void SetPopupStyle(bool popupStyle) { popupStyle_ = popupStyle; }
 private:
 	std::string text_;
 	bool large_ = false;
-	bool popupStyle_ = false;
 };
 
 class PopupHeader : public Item {

Common/UI/ViewGroup.cpp

@@ -48,6 +48,13 @@ ViewGroup::~ViewGroup() {
 	Clear();
 }
 
+void ViewGroup::Recurse(void (*func)(View *view)) {
+	for (View *view : views_) {
+		func(view);
+		view->Recurse(func);
+	}
+}
+
 void ViewGroup::RemoveSubview(View *subView) {
 	// loop counter needed, so can't convert loop.
 	for (size_t i = 0; i < views_.size(); i++) {

Common/UI/ViewGroup.h

@@ -82,6 +82,8 @@ public:
 	std::string DescribeLog() const override { return "ViewGroup: " + View::DescribeLog(); }
 	std::string DescribeText() const override;
 
+	void Recurse(void (*func)(View *view)) override;
+
 protected:
 	std::string DescribeListUnordered(std::string_view heading) const;
 	std::string DescribeListOrdered(std::string_view heading) const;