add config option to set the window icon

src/config.cpp

@@ -67,6 +67,7 @@ void Config::read()
     PO_DESC(gameFolder, std::string) \
     PO_DESC(anyAltToggleFS, bool) \
     PO_DESC(allowSymlinks, bool) \
+    PO_DESC(iconPath, std::string) \
     PO_DESC(customScript, std::string)
 
 // Not gonna take your shit boost

src/config.h

@@ -47,6 +47,8 @@ struct Config
 	bool anyAltToggleFS;
 	bool allowSymlinks;
 
+	std::string iconPath;
+
 	std::string customScript;
 	std::vector<std::string> rtps;
 

src/main.cpp

@@ -297,6 +297,16 @@ int main(int, char *argv[])
 		return 0;
 	}
 
+	if (!conf.iconPath.empty())
+	{
+		SDL_Surface *iconImg = IMG_Load(conf.iconPath.c_str());
+		if (iconImg)
+		{
+			SDL_SetWindowIcon(win, iconImg);
+			SDL_FreeSurface(iconImg);
+		}
+	}
+
 	EventThread eventThread;
 	RGSSThreadData rtData(&eventThread, argv[0], win, conf);