private void AddFilter()
        {
            //Loads the RealChute parachutes icon
            Texture2D normal = new Texture2D(32, 32), selected = new Texture2D(32, 32);
            normal.LoadImage(File.ReadAllBytes(Path.Combine(RCUtils.PluginDataURL, "FilterIcon.png")));
            selected.LoadImage(File.ReadAllBytes(Path.Combine(RCUtils.PluginDataURL, "FilterIcon_selected.png")));
            Icon icon = new Icon("RC_Parachutes", normal, selected);

            //Adds the Parachutes filter to the Filter by Function category
            PartCategorizer.Category filterByFunction = PartCategorizer.Instance.filters
                .Find(f => f.button.categoryName == "Filter by Function");
            PartCategorizer.AddCustomSubcategoryFilter(filterByFunction, "Parachutes", "Parachutes", icon,
                p => p.moduleInfos.Any(m => m.moduleName == "RealChute" || m.moduleName == "Parachute"));

            //Sets the buttons in the Filter by Module category
            List<PartCategorizer.Category> modules = PartCategorizer.Instance.filters
                .Find(f => f.button.categoryName == "Filter by Module").subcategories;
            modules.Remove(modules.Find(m => m.button.categoryName == "Procedural Chute"));
            modules.Select(m => m.button).Single(b => b.categoryName == "RealChute").SetIcon(icon);

            //Apparently needed to make sure the buttons in Filter by Function show when the editor is loaded
            UIRadioButton button = filterByFunction.button.activeButton;
            button.SetState(UIRadioButton.State.False, UIRadioButton.CallType.APPLICATION, null, false);
            button.SetState(UIRadioButton.State.True, UIRadioButton.CallType.APPLICATION, null, false);
        }

    private void Awake()
    {
                GameEvents.onGUIEditorToolbarReady.Add(AddFilter);
    }