Removed GTK2 compatibility shims from headers (fe-gtk.h, gtkutil.h), leaving direct GTK3-facing declarations/includes only (and platform-specific guards unrelated to GTK2 kept as-is).
Cleaned GTK2-specific comments/wording now that behavior is GTK3-native (menu accelerator note and emoji/userlist comment blocks).
Preserved the previous idle-batched behavior for users who are not at the bottom (scrolling history), so performance-friendly deferred redraws still apply in that case.
I also kept the existing correctness behavior: when indent does materially change, it still fixes/recalculates and updates ent->indent/force_render as before.
Kept GTK2 behavior unchanged (#if !HAVE_GTK3 still clears widget->window user data in the legacy path).
Added an in-code comment documenting why GTK3 must preserve user-data until chaining to parent unrealize.
Added a GTK3-only helper to translate Pango font fields into font-family, font-size, font-style, font-weight, font-variant, and font-stretch CSS declarations while preserving GTK2 behavior under #if !HAVE_GTK3.
Reused the GTK3 font CSS helper in the main UI font styling path to eliminate remaining Pango font: shorthand usage that triggers GTK3 theme parsing warnings.
Exposed the GTK3 font CSS helper in gtkutil so callers can emit CSS-compliant font properties consistently.
Updated gtk_entry_find_position to use GTK3-safe layout offsets and cursor position APIs while preserving GTK2-only field access behind #if !HAVE_GTK3.
Switched GtkXText and CustomList implementations to G_DEFINE_TYPE/G_DEFINE_TYPE_WITH_CODE and preserved parent chaining behavior
Added GTK3/GTK2 conditional type declarations for GtkXText while restoring the legacy macro block for GTK2 builds.
Restored GTK2-friendly typedefs/macros and parent field naming for CustomList alongside GTK3 G_DECLARE_DERIVABLE_TYPE usage.
Restored GTK2-friendly typedefs/macros and parent field naming for SexySpellEntry while keeping GTK3 declarations intact.
Restored legacy RemoteObject typedefs and GType macros in the D-Bus plugin to keep GTK2 builds from seeing incomplete types or missing fields/macros.
Added a shared cleanup helper plus GTK2 destroy/GTK3 dispose handlers with correct parent chaining for cleanup parity across GTK versions.
Updated class initialization to register GTK3 dispose or GTK2 destroy handlers with appropriate object class setup.
Aligned GTK3/GTK2 window selection blocks in scrolling/selection and render routines (including gtk_xtext_render_page) to use #else guards for GTK2 direct access.
Applied explicit GTK3/GTK2 window access guards across render/scroll/buffer sizing paths, including gtk_xtext_render_page and gdk_window_get_width/height callsites.
Split the GTK3 and GTK2 initialization paths in gtk_xtext_realize() so the GTK3 branch uses gtk_widget_get_allocation()/gtk_widget_get_parent_window() and the GTK2 branch keeps the direct struct access under #if !HAVE_GTK3.
Consolidated the GTK3 vs GTK2 branching in gtk_xtext_realize() so GTK3 uses gtk_widget_get_allocation(), gtk_widget_get_parent_window(), and gtk_widget_set_window(), with the existing GTK2 direct struct access preserved under #if !HAVE_GTK3.
Split the GTK3 and GTK2 branches in gtk_xtext_realize() so GTK3 uses gtk_widget_get_allocation(), gtk_widget_get_parent_window(), and gtk_widget_set_window(), while keeping the existing GTK2 struct access under #if !HAVE_GTK3.
Updated gtk_xtext_realize() to use gtk_widget_get_allocation(), gtk_widget_get_parent_window(), and gtk_widget_set_window() on GTK3, and routed all subsequent window usage through the local window variable instead of direct struct access; the GTK2 path remains intact under #if !HAVE_GTK3.
Adjusted gtk_xtext_clear_background() to use gtk_widget_get_window() on GTK3 rather than widget->window.
- Added a Cairo surface → RGBA pixbuf conversion helper that unpremultiplies ARGB32 data for GTK2 compatibility while keeping window snapshots Cairo-based.
- Updated window snapshotting to use the new Cairo surface conversion instead of gdk_pixbuf_get_from_surface
