diff --git a/docs/modernization/build-inventory.md b/docs/modernization/build-inventory.md
index 53e75f3..165ff11 100644
--- a/docs/modernization/build-inventory.md
+++ b/docs/modernization/build-inventory.md
@@ -448,9 +448,9 @@ Known local toolchain state:
   startup storage path preparation, clipboard text, cursor visibility,
   virtual-keyboard visibility, external file display, file sharing, native
   app/window close, UI-thread lifecycle hooks, render-context lifecycle hooks,
-  render-target binding hooks, render-capture frame hooks, per-frame platform
-  hooks, picker callbacks, and recording cleanup, live asset/layout reload
-  policy, diagnostic
+  render-target binding hooks, render platform hint hooks, render-capture frame
+  hooks, per-frame platform hooks, picker callbacks, and recording cleanup,
+  live asset/layout reload policy, diagnostic
   stacktrace/crash hooks, prepared-file save/download handoff;
   Windows
   live app execution now uses injected
diff --git a/docs/modernization/debt.md b/docs/modernization/debt.md
index bae6092..3a22573 100644
--- a/docs/modernization/debt.md
+++ b/docs/modernization/debt.md
@@ -35,7 +35,7 @@ agent or engineer to remove them without reconstructing context from chat.
 | DEBT-0014 | Open | Modernization | `windows-clangcl-asan` now configures as a headless Ninja/clang-cl preset and uses the release MSVC runtime required by ASan, but local builds still fail because installed clang-cl 18.1.8 is paired with VS 2026-preview STL headers that require Clang 20 or newer | Sanitizer validation should be local and repeatable, but this machine's compiler/header pairing is incompatible | `cmake --fresh --preset windows-clangcl-asan`; `cmake --build --preset windows-clangcl-asan --target pp_foundation` | Install/use Clang 20+ with the VS 2026 STL, or point the preset at a compatible VS 2022 toolchain, then make `platform-build.ps1 -Presets windows-clangcl-asan` pass for the headless matrix |
 | DEBT-0015 | Open | Modernization | Cursor visibility requests now consume pure `pp_app_core` planning through `pano_cli plan-cursor-visibility`, `App::show_cursor`/`App::hide_cursor` dispatch through `PlatformServices` without platform guards, and Windows live execution uses injected `WindowsPlatformServices`, but macOS cursor execution still reaches the retained fallback adapter | Keep canvas cursor behavior stable while platform shells are extracted incrementally | `pp_app_core_document_platform_io_tests`; `pano_cli plan-cursor-visibility --visible`; `ctest --preset desktop-fast --build-config Debug` | Cursor visibility execution is owned by injected `pp_platform_*` services for every supported platform |
 | DEBT-0016 | Open | Modernization | Clipboard get/set requests now consume pure `pp_app_core` planning through `pano_cli plan-clipboard-read` and `pano_cli plan-clipboard-write`, and Windows live execution uses injected `WindowsPlatformServices`, but Apple/Android clipboard execution still reaches retained fallback adapter branches from `App::clipboard_get_text` and `App::clipboard_set_text` | Keep picker/color text clipboard behavior stable while platform shells are extracted incrementally | `pp_app_core_document_platform_io_tests`; `pano_cli plan-clipboard-write --text #ff00aa`; `ctest --preset desktop-fast --build-config Debug` | Clipboard execution is owned by injected `pp_platform_*` services for every supported platform |
-| DEBT-0017 | Open | Modernization | Startup storage path preparation, `App::clipboard_get_text`, `App::clipboard_set_text`, `App::show_cursor`, `App::hide_cursor`, `App::showKeyboard`, `App::hideKeyboard`, `App::display_file`, `App::share_file`, native app/window close, UI-thread lifecycle hooks, render-context acquire/release/present hooks, render-target binding hooks, render-capture frame hooks, recording cleanup, live asset/layout reload policy, diagnostic stacktrace/crash hooks, per-frame platform hooks, `App::pick_image`, `App::pick_file`, the non-writer `App::pick_file_save`, `App::pick_dir`, and prepared-file save/download handoff now call the SDK-free `pp::platform::PlatformServices` interface, and Windows injects `WindowsPlatformServices` from `src/platform_windows/windows_platform_services.*`; non-Windows live implementations still use `src/platform_legacy/legacy_platform_services.*`, a named fallback adapter that forwards to retained Apple/Android/Linux/Web bridge functions and retained no-op branches | Preserve behavior while moving platform execution behind a testable service boundary before platform shell implementations are injected | `pp_platform_api_tests`; `pp_app_core_document_platform_io_tests`; `ctest --preset desktop-fast --build-config Debug`; `powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug` | Replace `src/platform_legacy/legacy_platform_services.*` with injected `pp_platform_*` service implementations owned by each non-Windows platform shell |
+| DEBT-0017 | Open | Modernization | Startup storage path preparation, `App::clipboard_get_text`, `App::clipboard_set_text`, `App::show_cursor`, `App::hide_cursor`, `App::showKeyboard`, `App::hideKeyboard`, `App::display_file`, `App::share_file`, native app/window close, UI-thread lifecycle hooks, render-context acquire/release/present hooks, render-target binding hooks, render platform hint hooks, render-capture frame hooks, recording cleanup, live asset/layout reload policy, diagnostic stacktrace/crash hooks, per-frame platform hooks, `App::pick_image`, `App::pick_file`, the non-writer `App::pick_file_save`, `App::pick_dir`, and prepared-file save/download handoff now call the SDK-free `pp::platform::PlatformServices` interface, and Windows injects `WindowsPlatformServices` from `src/platform_windows/windows_platform_services.*`; non-Windows live implementations still use `src/platform_legacy/legacy_platform_services.*`, a named fallback adapter that forwards to retained Apple/Android/Linux/Web bridge functions and retained no-op branches | Preserve behavior while moving platform execution behind a testable service boundary before platform shell implementations are injected | `pp_platform_api_tests`; `pp_app_core_document_platform_io_tests`; `ctest --preset desktop-fast --build-config Debug`; `powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug` | Replace `src/platform_legacy/legacy_platform_services.*` with injected `pp_platform_*` service implementations owned by each non-Windows platform shell |
 
 ## Closed Debt
 
diff --git a/docs/modernization/roadmap.md b/docs/modernization/roadmap.md
index d4171d4..bac2aa2 100644
--- a/docs/modernization/roadmap.md
+++ b/docs/modernization/roadmap.md
@@ -472,9 +472,9 @@ before retained platform clipboard bridges continue.
 startup storage path preparation, clipboard text, cursor visibility,
 virtual-keyboard visibility, UI-thread lifecycle hooks, render-context
 acquire/release/present hooks, render-target binding hooks, render-capture
-frame hooks, external file display, file sharing, recording file cleanup, live
-asset/layout reload policy, diagnostic stacktrace/crash hooks,
-image/file/save-file pickers, and directory pickers.
+frame hooks, render platform hint hooks, external file display, file sharing,
+recording file cleanup, live asset/layout reload policy, diagnostic
+stacktrace/crash hooks, image/file/save-file pickers, and directory pickers.
 Windows installs an injected `WindowsPlatformServices` implementation from
 `src/platform_windows/windows_platform_services.*` in `pp_platform_windows`;
 other platforms still route through the debt-tracked legacy fallback adapter
@@ -506,6 +506,9 @@ shells are injected.
 Render-task default-target binding and visible main-target binding now dispatch
 through `PlatformServices`, preserving the existing iOS drawable bind in the
 legacy adapter while removing the iOS drawable branch from `App::draw`.
+Initial render platform hints now also dispatch through `PlatformServices`,
+preserving the previous Windows/macOS program-point-size and line-smoothing
+enablement while removing the Windows/macOS branch from `App::init`.
 Windows RenderDoc frame capture hooks now also dispatch through
 `PlatformServices`, keeping capture integration in the platform service while
 leaving non-Windows adapters as no-ops.
@@ -1038,11 +1041,11 @@ Results:
   clipboard writes, cursor visibility dispatch, virtual-keyboard visibility
   dispatch, external file display dispatch, file sharing dispatch, native
   app/window close dispatch, UI-thread lifecycle dispatch, render-context
-  lifecycle dispatch, render-target binding dispatch, render-capture frame hook
-  dispatch, recording cleanup dispatch, live asset/layout reload policy
-  dispatch, diagnostic hook dispatch, per-frame platform hook dispatch, picker
-  callback dispatch, and prepared-file save/download callback dispatch. The
-  live Windows app now
+  lifecycle dispatch, render-target binding dispatch, render platform hint
+  dispatch, render-capture frame hook dispatch, recording cleanup dispatch,
+  live asset/layout reload policy dispatch, diagnostic hook dispatch, per-frame
+  platform hook dispatch, picker callback dispatch, and prepared-file
+  save/download callback dispatch. The live Windows app now
   consumes this interface through an injected
   `WindowsPlatformServices` instance isolated in
   `src/platform_windows/windows_platform_services.*`; other platforms still
diff --git a/src/app.cpp b/src/app.cpp
index 84ff19a..8828dc3 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -85,16 +85,6 @@ namespace {
     return static_cast<GLenum>(pp::renderer::gl::scissor_test_state());
 }
 
-[[nodiscard]] GLenum program_point_size_state() noexcept
-{
-    return static_cast<GLenum>(pp::renderer::gl::program_point_size_state());
-}
-
-[[nodiscard]] GLenum line_smooth_state() noexcept
-{
-    return static_cast<GLenum>(pp::renderer::gl::line_smooth_state());
-}
-
 [[nodiscard]] GLenum source_alpha_blend_factor() noexcept
 {
     return static_cast<GLenum>(pp::renderer::gl::source_alpha_blend_factor());
@@ -496,10 +486,7 @@ void App::init()
         //}
     
         glDisable(depth_test_state());
-    #if defined(_WIN32) || defined(__OSX__)
-        glEnable(program_point_size_state());
-        glEnable(line_smooth_state());
-    #endif
+        App::I->apply_render_platform_hints();
         glBlendFunc(source_alpha_blend_factor(), one_minus_source_alpha_blend_factor());
         glBlendEquationSeparate(add_blend_equation(), max_blend_equation());
     });
diff --git a/src/app.h b/src/app.h
index 451bdd8..e5a62a3 100644
--- a/src/app.h
+++ b/src/app.h
@@ -198,6 +198,7 @@ public:
     void present_render_context();
     void bind_default_render_target();
     void bind_main_render_target();
+    void apply_render_platform_hints();
     void begin_render_capture_frame();
     void end_render_capture_frame();
     [[nodiscard]] bool platform_deletes_recorded_files_on_clear();
diff --git a/src/app_events.cpp b/src/app_events.cpp
index 03d5c0b..7857aae 100644
--- a/src/app_events.cpp
+++ b/src/app_events.cpp
@@ -247,6 +247,11 @@ void App::bind_main_render_target()
     active_platform_services().bind_main_render_target();
 }
 
+void App::apply_render_platform_hints()
+{
+    active_platform_services().apply_render_platform_hints();
+}
+
 void App::begin_render_capture_frame()
 {
     active_platform_services().begin_render_capture_frame();
diff --git a/src/platform_api/platform_services.h b/src/platform_api/platform_services.h
index bba253a..9d8aa2c 100644
--- a/src/platform_api/platform_services.h
+++ b/src/platform_api/platform_services.h
@@ -35,6 +35,7 @@ public:
     virtual void present_render_context() = 0;
     virtual void bind_default_render_target() = 0;
     virtual void bind_main_render_target() = 0;
+    virtual void apply_render_platform_hints() = 0;
     virtual void begin_render_capture_frame() = 0;
     virtual void end_render_capture_frame() = 0;
     [[nodiscard]] virtual bool deletes_recorded_files_on_clear() = 0;
diff --git a/src/platform_legacy/legacy_platform_services.cpp b/src/platform_legacy/legacy_platform_services.cpp
index 73ac0f1..6bc13c5 100644
--- a/src/platform_legacy/legacy_platform_services.cpp
+++ b/src/platform_legacy/legacy_platform_services.cpp
@@ -241,6 +241,14 @@ public:
 #endif
     }
 
+    void apply_render_platform_hints() override
+    {
+#if defined(__OSX__)
+        glEnable(static_cast<GLenum>(pp::renderer::gl::program_point_size_state()));
+        glEnable(static_cast<GLenum>(pp::renderer::gl::line_smooth_state()));
+#endif
+    }
+
     void begin_render_capture_frame() override
     {
     }
diff --git a/src/platform_windows/windows_platform_services.cpp b/src/platform_windows/windows_platform_services.cpp
index a7e362d..e788e9c 100644
--- a/src/platform_windows/windows_platform_services.cpp
+++ b/src/platform_windows/windows_platform_services.cpp
@@ -262,6 +262,12 @@ public:
         bind_default_render_target();
     }
 
+    void apply_render_platform_hints() override
+    {
+        glEnable(static_cast<GLenum>(pp::renderer::gl::program_point_size_state()));
+        glEnable(static_cast<GLenum>(pp::renderer::gl::line_smooth_state()));
+    }
+
     void begin_render_capture_frame() override
     {
         win32_renderdoc_frame_start();
diff --git a/tests/platform_api/platform_services_tests.cpp b/tests/platform_api/platform_services_tests.cpp
index fb6c084..da71c5a 100644
--- a/tests/platform_api/platform_services_tests.cpp
+++ b/tests/platform_api/platform_services_tests.cpp
@@ -91,6 +91,11 @@ public:
         ++main_render_target_binds;
     }
 
+    void apply_render_platform_hints() override
+    {
+        ++render_platform_hint_applies;
+    }
+
     void begin_render_capture_frame() override
     {
         ++render_capture_begins;
@@ -196,6 +201,7 @@ public:
     int render_context_presents = 0;
     int default_render_target_binds = 0;
     int main_render_target_binds = 0;
+    int render_platform_hint_applies = 0;
     int render_capture_begins = 0;
     int render_capture_ends = 0;
     int storage_prepares = 0;
@@ -327,12 +333,14 @@ void platform_services_dispatch_render_context_lifecycle(pp::tests::Harness& har
     services.present_render_context();
     services.bind_default_render_target();
     services.bind_main_render_target();
+    services.apply_render_platform_hints();
     services.release_render_context();
 
     PP_EXPECT(harness, fake.render_context_acquires == 1);
     PP_EXPECT(harness, fake.render_context_presents == 1);
     PP_EXPECT(harness, fake.default_render_target_binds == 1);
     PP_EXPECT(harness, fake.main_render_target_binds == 1);
+    PP_EXPECT(harness, fake.render_platform_hint_applies == 1);
     PP_EXPECT(harness, fake.render_context_releases == 1);
 }