diff --git a/docs/Project.toml b/docs/Project.toml
index a064dd85..1814eb33 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -2,4 +2,4 @@
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 
 [compat]
-Documenter = "v0.24"
+Documenter = "1"
diff --git a/docs/make.jl b/docs/make.jl
index e48211b2..f2750b21 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -2,7 +2,8 @@ using Documenter, Gtk4
 
 makedocs(
     format = Documenter.HTML(
-        prettyurls = get(ENV, "CI", nothing) == "true"
+        prettyurls = get(ENV, "CI", nothing) == "true",
+        size_threshold_ignore = ["doc/GLib_reference.md","doc/reference.md","doc/constants_reference.md"]
     ),
     modules = [Gtk4],
     sitename = "Gtk4.jl",
@@ -29,6 +30,7 @@ makedocs(
         "Gtk.jl to Gtk4.jl" => "diff3to4.md",
         "Reference" => ["doc/reference.md",
                         "doc/GLib_reference.md",
+                        "doc/constants_reference.md",
                         "doc/preferences.md"
                     ],
         #"GI Reference" => "doc/GI_reference.md"
diff --git a/docs/src/doc/GI_reference.md b/docs/src/doc/GI_reference
similarity index 100%
rename from docs/src/doc/GI_reference.md
rename to docs/src/doc/GI_reference
diff --git a/docs/src/doc/GLib_reference.md b/docs/src/doc/GLib_reference.md
index 825fd30d..738d2952 100644
--- a/docs/src/doc/GLib_reference.md
+++ b/docs/src/doc/GLib_reference.md
@@ -27,9 +27,3 @@ Public  = true
 Private = false
 ```
 
-### Constants
-
-```@autodocs
-Modules = [Gtk4.GLib]
-Order   = [:constant]
-```
diff --git a/docs/src/doc/reference.md b/docs/src/doc/reference.md
index 9f248d70..bb2cf8c1 100644
--- a/docs/src/doc/reference.md
+++ b/docs/src/doc/reference.md
@@ -3,7 +3,7 @@
 ### Public interface
 
 ```@autodocs
-Modules = [Gtk4]
+Modules = [Gtk4, Gtk4.GdkPixbufLib]
 Order   = [:module, :function, :macro]
 Public  = true
 Private = false
@@ -12,7 +12,7 @@ Private = false
 ### Private methods
 
 ```@autodocs
-Modules = [Gtk4]
+Modules = [Gtk4, Gtk4.GdkPixbufLib]
 Order   = [:module, :type, :function, :macro]
 Public  = false
 Private = true
@@ -21,15 +21,9 @@ Private = true
 ### Types
 
 ```@autodocs
-Modules = [Gtk4]
+Modules = [Gtk4, Gtk4.GdkPixbufLib]
 Order   = [:type]
 Public  = true
 Private = false
 ```
 
-### Constants
-
-```@autodocs
-Modules = [Gtk4]
-Order   = [:constant]
-```
diff --git a/docs/src/manual/layout.md b/docs/src/manual/layout.md
index a2ae480c..d97444e8 100644
--- a/docs/src/manual/layout.md
+++ b/docs/src/manual/layout.md
@@ -40,6 +40,15 @@ push!(hbox, sep)
 # add more widgets here
 ```
 
+Julia interface methods defined for `GtkBox`:
+
+| method | what it does |
+| :--- | :--- |
+| `push!(b::GtkBox, w::GtkWidget)` | Adds a widget to the end of the box |
+| `pushfirst!(b::GtkBox, w::GtkWidget)` | Adds a widget to the beginning of the box |
+| `delete!(b::GtkBox, w::GtkWidget)` | Removes a widget from the box |
+| `empty!(b::GtkBox)` | Removes all widgets from the box |
+
 ## GtkGrid
 
 To create two-dimensional (tabular) layouts of widgets, you can use `GtkGrid`:
@@ -67,6 +76,24 @@ A range is used to indicate a span of grid cells.
 By default, each row/column will use only as much space as required to contain the objects,
 but you can force them to be of the same size by setting properties like `column_homogeneous`.
 
+A useful method for `GtkGrid` is `query_child`, which can be used to get the coordinates and span of a widget currently in the grid:
+```julia
+julia> Gtk4.query_child(g,c)
+(1, 2, 2, 1)
+```
+Here, 1 is the column, 2 is the row, and the widget spans 2 columns and 1 row.
+
+Julia interface methods defined for `GtkGrid`:
+
+| method | what it does |
+| :--- | :--- |
+| `getindex(g::GtkGrid, c::Integer, r::Integer)` or `g[c,r]` | Gets a widget, where `c` and `r` are the column and row indices |
+| `setindex!(g::GtkGrid, w::GtkWidget, c::Integer, r::Integer)` or `g[i,j] = w` | Sets a widget |
+| `insert!(g::GtkGrid, i::Integer, side)` | Inserts a row or column next to the existing row or column with index `i`; `side` can be `:left`, `:right`, `top`, or `bottom`. |
+| `insert!(g::GtkGrid, sibling::GtkWidget, side)` | Inserts a row or column next to the existing widget `sibling` that is already in the grid; `side` can be `:left`, `:right`, `top`, or `bottom`. |
+| `delete!(g::GtkGrid, w::GtkWidget)` | Removes a widget from the grid |
+| `empty!(g::GtkGrid)` | Removes all widgets from the grid |
+
 ## GtkCenterBox
 
 The `GtkCenterBox` widget can hold 3 widgets in a line, either horizontally or
@@ -80,6 +107,13 @@ cb[:end] = GtkButton("Right")
 For vertical orientation, `:start` refers to the top widget and `:end` to the
 bottom widget.
 
+Julia interface methods defined for `GtkCenterBox`:
+
+| method | what it does |
+| :--- | :--- |
+| `getindex(b::GtkCenterBox, pos::Symbol)` or `b[pos]` | Gets a widget, where `pos` is `:start`, `:center`, or `:end` |
+| `setindex!(b::GtkCenterBox, w::GtkWidget, pos::Symbol)` or `b[pos] = w` | Sets a widget |
+
 ## GtkPaned
 
 The `GtkPaned` widget creates two slots separated by a movable divider. Like `GtkBox` and `GtkCenterBox`, it can
@@ -90,6 +124,13 @@ paned[1] = top_or_left_widget
 paned[2] = bottom_or_right_widget
 ```
 
+Julia interface methods defined for `GtkPaned`:
+
+| method | what it does |
+| :--- | :--- |
+| `getindex(b::GtkPaned, i::Integer)` or `b[i]` | Gets a widget, where `i` is 1 or 2 |
+| `setindex!(b::GtkPaned, w::GtkWidget, i::Integer)` or `b[i] = w` | Sets a widget |
+
 ## GtkNotebook
 
 The `GtkNotebook` widget places child widgets in tabs like a browser window.
diff --git a/src/base.jl b/src/base.jl
index 5b250b9c..5233700d 100644
--- a/src/base.jl
+++ b/src/base.jl
@@ -192,6 +192,13 @@ end
 
 ## CSS, style
 
+"""
+    GtkCssProvider(data, filename = nothing)
+
+Create a GtkCssProvider object using CSS from a string `data`. If `data` is set to `nothing`, CSS is instead loaded from a file `filename`. If both arguments are `nothing`, an empty GtkCssProvider is returned.
+
+Related GTK functions: [`gtk_css_provider_load_from_path`()]($(gtkdoc_method_url("gtk4","CssProvider","load_from_path"))), [`gtk_css_provider_load_from_data`()]($(gtkdoc_method_url("gtk4","CssProvider","load_from_data")))
+"""
 function GtkCssProvider(data::Union{AbstractString,Nothing}, filename = nothing)
     provider = G_.CssProvider_new()
     if data !== nothing
@@ -223,9 +230,16 @@ function delete!(display::GdkDisplay, provider)
 end
 
 # because of a name collision this is annoying to generate using GI
+"""
+    GtkIconTheme(d::GdkDisplay)
+
+Get the icon theme for a `GdkDisplay`.
+
+Related GTK function: [`gtk_icon_theme_get_for_display`()]($(gtkdoc_method_url("gtk4","IconTheme","get_for_display")))
+"""
 function GtkIconTheme(d::GdkDisplay)
     ret = ccall(("gtk_icon_theme_get_for_display",libgtk4), Ptr{GObject}, (Ptr{GObject},), d)
-    convert(GtkIconTheme, ret, false)
+    GtkIconThemeLeaf(ret, false)
 end
 
 function icon_theme_add_search_path(icon_theme::GtkIconTheme, path::AbstractString)
@@ -234,6 +248,13 @@ end
 
 ## GtkApplication and actions
 
+"""
+    GtkApplication(id = nothing, flags = GLib.ApplicationFlags_FLAGS_NONE)
+
+Create a `GtkApplication` with DBus id `id` and flags.
+
+Related GTK function: [`gtk_application_new`()]($(gtkdoc_method_url("gtk4","Application","new")))
+"""
 GtkApplication(id = nothing, flags = GLib.ApplicationFlags_FLAGS_NONE) = G_.Application_new(id,flags)
 function push!(app::GtkApplication, win::GtkWindow)
     G_.add_window(app, win)
diff --git a/src/buttons.jl b/src/buttons.jl
index 854eaa55..05d6b74d 100644
--- a/src/buttons.jl
+++ b/src/buttons.jl
@@ -1,10 +1,29 @@
 ## GtkButton
 
+"""
+    GtkButton(w::GtkWidget)
+
+Create a `GtkButton` and add a widget `w` as its child.
+"""
 function GtkButton(w::GtkWidget)
     b = G_.Button_new()
     G_.set_child(b,w)
     b
 end
+
+"""
+    GtkButton(s::Symbol, str::AbstractString)
+
+Create and return a `GtkButton` widget.
+
+If `s` is :label, create a button with a string label.
+
+If `s` is :mnemonic, create a button with a string label, where the first letter preceded by an underscore character defines a mnemonic. Pressing Alt and that letter activates the button.
+
+If `s` is :icon_name, create a button with an icon from the current icon theme.
+
+Related GTK functions: [`gtk_button_new_with_label`()]($(gtkdoc_method_url("gtk4","Button","new_with_label"))), [`gtk_button_new_with_mnemonic`()]($(gtkdoc_method_url("gtk4","Button","new_with_mnemonic"))), [`gtk_button_new_from_icon_name`()]($(gtkdoc_method_url("gtk4","Button","new_from_icon_name")))
+"""
 function GtkButton(s::Symbol,str::AbstractString)
     if s === :mnemonic
         G_.Button_new_with_mnemonic(str)
@@ -45,26 +64,26 @@ end
 
 ## GtkLinkButton
 
-function GtkLinkButton(uri::AbstractString, label::AbstractString, visited::Bool)
-    b = GtkLinkButton(uri, label)
+function GtkLinkButton(uri::AbstractString, label::AbstractString, visited::Bool; kwargs...)
+    b = GtkLinkButton(uri, label; kwargs...)
     G_.set_visited(b, visited)
     b
 end
-function GtkLinkButton(uri::AbstractString, visited::Bool)
-    b = GtkLinkButton(uri)
+function GtkLinkButton(uri::AbstractString, visited::Bool; kwargs...)
+    b = GtkLinkButton(uri; kwargs...)
     G_.set_visited(b, visited)
     b
 end
 
-function GtkVolumeButton(value::Real) # 0 <= value <= 1
-    b = GtkVolumeButton()
+function GtkVolumeButton(value::Real; kwargs...) # 0 <= value <= 1
+    b = GtkVolumeButton(; kwargs...)
     G_.set_value(b, value)
     b
 end
 
 popup(b::GtkMenuButton) = G_.popup(b)
 
-function GtkPopoverMenu(model::GMenu, nested = false)
+function GtkPopoverMenu(model::GMenu, nested::Bool = false)
     if nested
         G_.PopoverMenu_new_from_model_full(model, PopoverMenuFlags_Nested)
     else