diff --git a/GI/src/GLibBase/GLibBase.jl b/GI/src/GLibBase/GLibBase.jl
index 3d6e293e..e8498439 100644
--- a/GI/src/GLibBase/GLibBase.jl
+++ b/GI/src/GLibBase/GLibBase.jl
@@ -15,16 +15,6 @@ export GInterface, GType, GObject, GBoxed, GTypeInstance
 export GEnum, GError, GValue, g_type
 export GHashTable, GByteArray, GArray, GPtrArray
 export GList, _GSList, _GList
-export cfunction_
-
-
-cfunction_(@nospecialize(f), r, a::Tuple) = cfunction_(f, r, Tuple{a...})
-
-@generated function cfunction_(f, R::Type{rt}, A::Type{at}) where {rt, at<:Tuple}
-    quote
-        @cfunction($(Expr(:$,:f)), $rt, ($(at.parameters...),))
-    end
-end
 
 # local function, handles Symbol and makes UTF8-strings easier
 const  AbstractStringLike = Union{AbstractString, Symbol}
@@ -33,7 +23,6 @@ bytestring(s::Symbol) = s
 bytestring(s::Ptr{UInt8}) = s == C_NULL ? nothing : unsafe_string(s)
 # bytestring(s::Ptr{UInt8}, own::Bool=false) = unsafe_string(s)
 
-g_malloc(s::Integer) = ccall((:g_malloc, libglib), Ptr{Nothing}, (Csize_t,), s)
 g_free(p::Ptr) = ccall((:g_free, libglib), Nothing, (Ptr{Nothing},), p)
 
 gtkdoc_const_url(ns,name)="https://docs.gtk.org/$(ns)/const.$(name).html"
diff --git a/GI/src/GLibBase/gtype.jl b/GI/src/GLibBase/gtype.jl
index bdeea0f6..4461e1e7 100644
--- a/GI/src/GLibBase/gtype.jl
+++ b/GI/src/GLibBase/gtype.jl
@@ -57,7 +57,6 @@ end
 g_isa(gtyp::GType, is_a_type::GType) = ccall((:g_type_is_a, libgobject), Cint, (GType, GType), gtyp, is_a_type) != 0
 g_type_name(g_type::GType) = Symbol(bytestring(ccall((:g_type_name, libgobject), Ptr{UInt8}, (GType,), g_type)))
 
-g_type_test_flags(g_type::GType, flag) = ccall((:g_type_test_flags, libgobject), Bool, (GType, GEnum), g_type, flag)
 const G_TYPE_FLAG_CLASSED           = 1 << 0
 const G_TYPE_FLAG_INSTANTIATABLE    = 1 << 1
 const G_TYPE_FLAG_DERIVABLE         = 1 << 2
diff --git a/GI/src/girepo.jl b/GI/src/girepo.jl
index efffe907..28ad398b 100644
--- a/GI/src/girepo.jl
+++ b/GI/src/girepo.jl
@@ -26,7 +26,6 @@ function info_unref(info::GIInfo)
     info.handle = C_NULL
 end
 
-convert(::Type{Ptr{GIBaseInfo}},w::GIInfo) = w.handle
 unsafe_convert(::Type{Ptr{GIBaseInfo}},w::GIInfo) = w.handle
 
 const GIInfoTypesShortNames = (:Invalid, :Function, :Callback, :Struct, :Boxed, :Enum,
@@ -115,13 +114,7 @@ struct GINamespace
         new(namespace)
     end
 end
-convert(::Type{Symbol}, ns::GINamespace) = ns.name
 convert(::Type{Cstring}, ns::GINamespace) = ns.name
-convert(::Type{Ptr{UInt8}}, ns::GINamespace) = convert(Ptr{UInt8}, ns.name)
-unsafe_convert(::Type{Symbol}, ns::GINamespace) = ns.name
-unsafe_convert(::Type{Ptr{UInt8}}, ns::GINamespace) = convert(Ptr{UInt8}, ns.name)
-
-Base.:(==)(a::GINamespace, b::GINamespace) = (a.name === b.name)
 
 function gi_require(namespace::Symbol, version = nothing)
     if isnothing(version)
diff --git a/src/buttons.jl b/src/buttons.jl
index 05d6b74d..5fb90db8 100644
--- a/src/buttons.jl
+++ b/src/buttons.jl
@@ -94,4 +94,3 @@ end
 GtkPopoverMenuBar(model::GMenu) = G_.PopoverMenuBar_new_from_model(model)
 
 menu_model(b::Union{GtkMenuButton,GtkPopoverMenu, GtkPopoverMenuBar}, model) = G_.set_menu_model(b, GMenuModel(model))
-menu_model(b::Union{GtkMenuButton,GtkPopoverMenu, GtkPopoverMenuBar}) = G_.get_menu_model(b)
diff --git a/src/cairo.jl b/src/cairo.jl
index e531e66f..1e3682fd 100644
--- a/src/cairo.jl
+++ b/src/cairo.jl
@@ -22,7 +22,7 @@ end
 
 function _canvas_on_resize(::Ptr, width, height, canvas)
     canvas.is_sized = true
-    if G_.get_realized(canvas)
+    if isrealized(canvas)
         _init_canvas!(canvas, width, height)
 
         if isa(canvas.resize, Function)
diff --git a/src/gen/gdkpixbuf_consts b/src/gen/gdkpixbuf_consts
index 7cd92348..702a785a 100644
--- a/src/gen/gdkpixbuf_consts
+++ b/src/gen/gdkpixbuf_consts
@@ -2,9 +2,9 @@ quote
 $(Expr(:toplevel, quote
     begin
         const PIXBUF_MAJOR = 2
-        const PIXBUF_MICRO = 8
+        const PIXBUF_MICRO = 10
         const PIXBUF_MINOR = 42
-        const PIXBUF_VERSION = "2.42.8"
+        const PIXBUF_VERSION = "2.42.10"
         begin
             @cenum Colorspace::Int32 Colorspace_RGB = 0
             (GLib.g_type(::Type{T}) where T <: Colorspace) = begin
diff --git a/test/gdkpixbuf.jl b/test/gdkpixbuf.jl
index f0a712f2..5faf6183 100644
--- a/test/gdkpixbuf.jl
+++ b/test/gdkpixbuf.jl
@@ -9,6 +9,8 @@ using Test, Gtk4, Gtk4.GdkPixbufLib, Colors, TestImages
 
     t2 = GdkMemoryTexture(img,false)
     @test size(t2) == size(img)
+    arr = Gtk4.toarray(t2)
+    @test size(arr) == size(img)
 end
 
 @testset "pixbuf" begin
diff --git a/test/gui/canvas.jl b/test/gui/canvas.jl
index bee5572b..8b2748be 100644
--- a/test/gui/canvas.jl
+++ b/test/gui/canvas.jl
@@ -10,7 +10,8 @@ gs = GtkEventControllerScroll(Gtk4.EventControllerScrollFlags_VERTICAL,c)
 gk = GtkEventControllerKey(c)
 ggc = GtkGestureClick(c)
 ggd = GtkGestureDrag(c)
-gsc = GtkShortcutController(c)
+    gsc = GtkShortcutController(c)
+    Gtk4.add_action_shortcut(gsc,"<Control>S","win.copy")
 ggz = GtkGestureZoom(c)
 t = Gtk4.find_controller(c,GtkEventControllerMotion)
 @test t==gm
diff --git a/test/gui/examples.jl b/test/gui/examples.jl
index 7ac20f34..1c6716e2 100644
--- a/test/gui/examples.jl
+++ b/test/gui/examples.jl
@@ -66,4 +66,13 @@ end
     destroy(main_window)
 end
 
+    @testset "Show Image" begin
+        include(joinpath(@__DIR__, "..", "..", "examples", "show_image.jl"))
+        destroy(win)
+    end
+
+    @testset "CSS Style" begin
+        include(joinpath(@__DIR__, "..", "..", "examples", "css-style.jl"))
+    end
+
 end
diff --git a/test/gui/layout.jl b/test/gui/layout.jl
index 3b2fce42..861915e4 100644
--- a/test/gui/layout.jl
+++ b/test/gui/layout.jl
@@ -86,6 +86,8 @@ end
     push!(nb, four, "tab _four")
     @test pagenumber(nb, four) == 4
     @test length(nb) == 4
+    deleteat!(nb, 3)
+    @test length(nb) == 3
     empty!(nb)
     @test length(nb) == 0
     destroy(w)
diff --git a/test/gui/misc.jl b/test/gui/misc.jl
index dbe30bcb..28b479c8 100644
--- a/test/gui/misc.jl
+++ b/test/gui/misc.jl
@@ -1,5 +1,9 @@
 using Test, Gtk4, Gtk4.G_, Gtk4.GLib
 
+@testset "Initialization" begin
+    @test Gtk4.isinitialized()
+end
+
 @testset "get/set property and binding" begin
     w = GtkWindow("Window", 400, 300)
     @test w.title == "Window"
@@ -125,6 +129,9 @@ Gtk4.child(w,f)
 l = GtkLabel("label"); push!(f,l)
 b = GtkButton("button"); push!(f,b)
 
+add_css_class(b,"error")
+remove_css_class(b,"error")
+
 counter = 0
 id = signal_connect(b, "activate") do widget
     counter::Int += 1
@@ -151,7 +158,7 @@ destroy(w)
 end
 
 @testset "Builder" begin
-b=GtkBuilder("test.ui")
+b=GtkBuilder(joinpath(dirname(@__FILE__), "test.ui"))
 widgets = [w for w in b]
 @test length(widgets)==length(b)
 @test length(b)==6
@@ -165,7 +172,9 @@ destroy(a_window)
 
 @test button == b["a_button"]
 
-s = open("test.ui","r") do f
+testui = joinpath(dirname(@__FILE__), "test.ui")
+    
+s = open(testui,"r") do f
     read(f,String)
 end
 b3 = GtkBuilder(s,-1)
@@ -173,7 +182,7 @@ win = b3["a_window"]
 destroy(win)
 
 b4 = GtkBuilder()
-push!(b4; filename="test.ui")
+push!(b4; filename=testui)
 
 win = b4["a_window"]
 destroy(win)
@@ -206,7 +215,7 @@ end
     w = GtkWindow(l)
     show(w)
 
-    ### add css tests here
+    delete!(sc, provider)
 
     destroy(w)
 end
@@ -215,9 +224,15 @@ end
 @test keyval("H") == Gtk4.KEY_H
 end
 
-@testset "IconTheme" begin
-    i = GtkIconTheme(GdkDisplay())
+@testset "IconTheme and CSS for GdkDisplay" begin
+    d = GdkDisplay()
+    i = GtkIconTheme(d)
     Gtk4.icon_theme_add_search_path(i, ".")
+
+    css = "GtkLabel { color: blue; }"
+    provider = GtkCssProvider(css)
+    push!(d, provider, 500)
+    delete!(d, provider)
 end
 
 @testset "Menus" begin
@@ -239,6 +254,7 @@ push!(filemenu, quit)
 GLib.submenu(menubar,"File",filemenu)
 
 mb = GtkPopoverMenuBar(menubar)
+@test Gtk4.menu_model(mb) == menubar
 b = GtkBox(:h)
 push!(b,mb)
 win = GtkWindow(b, "Menus", 200, 40)
diff --git a/test/test.ui b/test/gui/test.ui
similarity index 100%
rename from test/test.ui
rename to test/gui/test.ui
diff --git a/test/runtests.jl b/test/runtests.jl
index 7c2efbbc..ef8a5eed 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -40,8 +40,8 @@ include("gui/input.jl")
 include("gui/layout.jl")
 include("gui/window.jl")
 include("gui/listviews.jl")
-#include("gui/examples.jl")
-#include("gui/application.jl")  # needs to be last because it messes with the main loop
+include("gui/examples.jl")
+include("gui/application.jl")  # needs to be last because it messes with the main loop
 end
 
 GC.gc()