diff --git a/Cargo.toml b/Cargo.toml
index c2aeb76..f5790bb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,3 +15,8 @@ exclude = ["/screenshots", "./examples"]
 [dependencies]
 fltk = "1.1.6"
 
+[target.'cfg(target_os = "macos")'.dependencies]
+lazy_static = "1.4"
+
+[target.'cfg(target_os = "macos")'.build-dependencies]
+cc = "1"
\ No newline at end of file
diff --git a/bind.sh b/bind.sh
new file mode 100755
index 0000000..84c7ecc
--- /dev/null
+++ b/bind.sh
@@ -0,0 +1 @@
+bindgen src/cocoa_helper.h -o src/cocoa_helper.rs
\ No newline at end of file
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..33baff9
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,9 @@
+#[cfg(target_os = "macos")]
+fn main() {
+    let mut build = cc::Build::new();
+    build.file("src/cocoa_helper.m");
+    build.compile("cocoa");
+}
+
+#[cfg(not(target_os = "macos"))]
+fn main() {}
diff --git a/examples/widget_theme.rs b/examples/widget_theme.rs
index 04dd21e..18660ab 100644
--- a/examples/widget_theme.rs
+++ b/examples/widget_theme.rs
@@ -35,5 +35,6 @@ fn main() {
         };
         theme.apply();
     });
+
     a.run().unwrap();
 }
diff --git a/src/cocoa_helper.h b/src/cocoa_helper.h
new file mode 100644
index 0000000..f22e2a2
--- /dev/null
+++ b/src/cocoa_helper.h
@@ -0,0 +1,25 @@
+#pragma once
+
+#ifndef COCOA_COLOR_DEFINITION
+
+#define COLOR_GET(color)                                                       \
+  void my_##color(double *r, double *g, double *b, double *a);
+
+#else
+
+#define COLOR_GET(color)                                                       \
+  void my_##color(double *r, double *g, double *b, double *a) {                \
+    NSColor *i = [NSColor color];                                              \
+    NSColor *c = [i colorUsingColorSpace:[NSColorSpace genericRGBColorSpace]]; \
+    [c getRed:r green:g blue:b alpha:a];                                       \
+  }
+
+#endif
+
+COLOR_GET(windowBackgroundColor)
+
+COLOR_GET(labelColor)
+
+COLOR_GET(controlBackgroundColor)
+
+
diff --git a/src/cocoa_helper.m b/src/cocoa_helper.m
new file mode 100644
index 0000000..ec95019
--- /dev/null
+++ b/src/cocoa_helper.m
@@ -0,0 +1,4 @@
+#import <Cocoa/Cocoa.h>
+
+#define COCOA_COLOR_DEFINITION
+#include "cocoa_helper.h"
\ No newline at end of file
diff --git a/src/cocoa_helper.rs b/src/cocoa_helper.rs
new file mode 100644
index 0000000..78f57bf
--- /dev/null
+++ b/src/cocoa_helper.rs
@@ -0,0 +1,11 @@
+/* automatically generated by rust-bindgen 0.57.0 */
+
+extern "C" {
+    pub fn my_windowBackgroundColor(r: *mut f64, g: *mut f64, b: *mut f64, a: *mut f64);
+}
+extern "C" {
+    pub fn my_labelColor(r: *mut f64, g: *mut f64, b: *mut f64, a: *mut f64);
+}
+extern "C" {
+    pub fn my_controlBackgroundColor(r: *mut f64, g: *mut f64, b: *mut f64, a: *mut f64);
+}
diff --git a/src/lib.rs b/src/lib.rs
index 1e599ea..76b3db4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -68,9 +68,11 @@ fn main() {
 */
 
 use fltk::{app, enums::Color};
+#[cfg(target_os = "macos")]
+mod cocoa_helper;
 pub mod color_themes;
-pub mod widget_themes;
 pub mod widget_schemes;
+pub mod widget_themes;
 
 /// Color map struct. (index, r, g, b)
 #[derive(Default, Clone, Debug)]
@@ -129,8 +131,11 @@ pub enum ThemeType {
     Aero,
     /// Windows 8
     Metro,
-    /// MacOS
+    /// Classic MacOS
     Aqua,
+    #[cfg(target_os = "macos")]
+    /// Modern MacOS using system colors, supports Dark theme
+    Aqua2,
     /// Xfce
     Greybird,
     /// Windows 2000
@@ -160,6 +165,8 @@ impl WidgetTheme {
             ThemeType::Classic => widget_themes::classic::use_classic_theme(),
             ThemeType::Aero => widget_themes::aero::use_aero_theme(),
             ThemeType::Aqua => widget_themes::aqua::use_aqua_theme(),
+            #[cfg(target_os = "macos")]
+            ThemeType::Aqua2 => widget_themes::aqua2::use_aqua2_theme(),
             ThemeType::Dark => widget_themes::dark::use_dark_theme(),
             ThemeType::HighContrast => widget_themes::high_contrast::use_high_contrast_theme(),
             ThemeType::Blue => widget_themes::blue::use_blue_theme(),
diff --git a/src/widget_schemes/svg_based.rs b/src/widget_schemes/svg_based.rs
index 5f221ab..60cf166 100644
--- a/src/widget_schemes/svg_based.rs
+++ b/src/widget_schemes/svg_based.rs
@@ -55,7 +55,6 @@ fn oflat_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
     image.draw(x, y, w, h);
 }
 
-
 pub(crate) fn use_svg_based_scheme() {
     use fltk::enums::FrameType::*;
     app::reload_scheme().ok();
diff --git a/src/widget_themes/aqua2.rs b/src/widget_themes/aqua2.rs
new file mode 100644
index 0000000..12fb3f3
--- /dev/null
+++ b/src/widget_themes/aqua2.rs
@@ -0,0 +1,443 @@
+use super::*;
+use crate::cocoa_helper::*;
+use fltk::{app, enums::Color, misc::Tooltip};
+
+fn convert_colors(colors: (f64, f64, f64, f64)) -> (u8, u8, u8, u8) {
+    let r = (colors.0 * 255.0) as u8;
+    let g = (colors.1 * 255.0) as u8;
+    let b = (colors.2 * 255.0) as u8;
+    let a = (colors.3 * 255.0) as u8;
+    (r, g, b, a)
+}
+
+macro_rules! get_colors {
+    ($s:ident) => {{
+        let mut r = 1.0;
+        let mut g = 1.0;
+        let mut b = 1.0;
+        let mut a = 1.0;
+        unsafe {
+            $s(&mut r, &mut g, &mut b, &mut a);
+        }
+        convert_colors((r, g, b, a))
+    }};
+}
+
+lazy_static::lazy_static! {
+    static ref BG_COL: (u8, u8, u8, u8) = {
+        get_colors!(my_windowBackgroundColor)
+    };
+    static ref FG_COL: (u8, u8, u8, u8) = {
+        get_colors!(my_labelColor)
+    };
+    static ref BG2_COL: (u8, u8, u8, u8) = {
+        if FG_COL.0 > 250 && FG_COL.1 > 250 && FG_COL.2 > 250 {
+            (0, 0, 0, 255)
+        } else {
+            (255, 255, 255, 255)
+        }
+    };
+    static ref CONTROL_COL: (u8, u8, u8, u8) = {
+        get_colors!(my_controlBackgroundColor)
+    };
+}
+
+fn aqua2_button_up_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top outer border
+    set_draw_color(activated_color(Color::from_rgb(0x9A, 0x9A, 0x9A)));
+    draw_xyline(x + 3, y, x + w - 4);
+    // side outer borders
+    set_draw_color(activated_color(Color::from_rgb(0x91, 0x91, 0x91)));
+    draw_yxline(x, y + 3, y + h - 4);
+    draw_yxline(x + w - 1, y + 3, y + h - 4);
+    // bottom outer border
+    set_draw_color(activated_color(Color::from_rgb(0x90, 0x90, 0x90)));
+    draw_xyline(x + 3, y + h - 1, x + w - 4);
+    // top inner border
+    set_draw_color(activated_color(Color::from_rgb(0xFF, 0xFF, 0xFF)));
+    draw_xyline(x + 3, y + 1, x + w - 4);
+    // side top inner borders
+    set_draw_color(activated_color(Color::from_rgb(0xFC, 0xFC, 0xFC)));
+    draw_yxline(x + 1, y + 3, y + h / 2 - 1);
+    draw_yxline(x + w - 2, y + 3, y + h / 2 - 1);
+    // side bottom inner borders
+    set_draw_color(activated_color(Color::from_rgb(0xF4, 0xF4, 0xF4)));
+    draw_yxline(x + 1, y + h / 2 - 1, y + h - 4);
+    draw_yxline(x + w - 2, y + 3, y + h - 4);
+    // bottom inner border
+    set_draw_color(activated_color(Color::from_rgb(0xF3, 0xF2, 0xF0)));
+    draw_xyline(x + 3, y + h - 2, x + w - 4);
+    // corners
+    set_draw_color(activated_color(Color::from_rgb(0xAF, 0xAF, 0xAF)));
+    draw_arc(x, y, 8, 8, 90.0, 180.0);
+    draw_arc(x, y + h - 8, 8, 8, 180.0, 270.0);
+    draw_arc(x + w - 8, y + h - 8, 8, 8, 270.0, 360.0);
+    draw_arc(x + w - 8, y, 8, 8, 0.0, 90.0);
+}
+
+fn aqua2_button_up_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    if w >= h {
+        // top gradient
+        vertical_gradient(
+            x + 2,
+            y + 2,
+            x + w - 3,
+            y + h / 2 - 1,
+            Color::from_rgb(0xFF, 0xFF, 0xFF),
+            Color::from_rgb(0xF6, 0xF5, 0xF4),
+        );
+        // bottom fill
+        set_draw_color(activated_color(Color::from_rgb(0xED, 0xEC, 0xEA)));
+        draw_rectf(x + 2, y + h / 2, w - 4, h - h / 2 - 3);
+        // bottom gradient
+        set_draw_color(activated_color(Color::from_rgb(0xEF, 0xEE, 0xEC)));
+        draw_xyline(x + 2, y + h - 3, x + w - 3);
+    } else {
+        // left gradient
+        horizontal_gradient(
+            x + 2,
+            y + 2,
+            x + w / 2 - 1,
+            y + h - 3,
+            Color::from_rgb(0xFF, 0xFF, 0xFF),
+            Color::from_rgb(0xF6, 0xF5, 0xF4),
+        );
+        // right fill
+        set_draw_color(activated_color(Color::from_rgb(0xED, 0xEC, 0xEA)));
+        draw_rectf(x + w / 2, y + 2, w - w / 2 - 3, h - 4);
+        // right gradient
+        set_draw_color(activated_color(Color::from_rgb(0xEF, 0xEE, 0xEC)));
+        draw_yxline(x + w - 3, y + 2, y + h - 3);
+    }
+    aqua2_button_up_frame(x, y, w, h, c);
+}
+
+fn aqua2_panel_thin_up_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    set_draw_color(activated_color(devalued(c, 0.06751)));
+    draw_rect(x, y, w, h);
+}
+
+fn aqua2_panel_thin_up_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    set_draw_color(activated_color(c));
+    draw_rectf(x + 1, y + 1, w - 2, h - 2);
+    aqua2_panel_thin_up_frame(x, y, w, h, c);
+}
+
+fn aqua2_spacer_thin_down_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top and left borders
+    set_draw_color(activated_color(Color::from_rgb(0xD6, 0xD6, 0xD6)));
+    draw_yxline2(x, y + h - 2, y, x + w - 2);
+    // bottom and right borders
+    set_draw_color(activated_color(Color::from_rgb(0xF3, 0xF3, 0xF3)));
+    draw_xyline2(x, y + h - 1, x + w - 1, y);
+}
+
+fn aqua2_spacer_thin_down_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    set_draw_color(activated_color(c));
+    draw_rectf(x + 1, y + 1, w - 2, h - 2);
+    aqua2_spacer_thin_down_frame(x, y, w, h, c);
+}
+
+fn aqua2_radio_round_down_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    set_draw_color(activated_color(devalued(c, 0.42194)));
+    draw_arc(x, y, w, h, 0.0, 360.0);
+}
+
+fn aqua2_radio_round_down_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top edges
+    set_draw_color(activated_color(Color::from_rgb(0xF6, 0xF6, 0xF6)));
+    draw_arc(x + 1, y + 1, w - 2, h - 2, 0.0, 180.0);
+    // bottom edges
+    set_draw_color(activated_color(Color::from_rgb(0xEB, 0xEB, 0xEB)));
+    draw_arc(x + 1, y + 1, w - 2, h - 2, 180.0, 360.0);
+    // top gradient
+    vertical_gradient(
+        x + 2,
+        y + 2,
+        x + w - 3,
+        y + h / 2 - 1,
+        Color::from_rgb(0xFF, 0xFF, 0xFF),
+        Color::from_rgb(0xF6, 0xF5, 0xF4),
+    );
+    // bottom fill
+    set_draw_color(activated_color(Color::from_rgb(0xED, 0xEC, 0xEA)));
+    draw_rectf(x + 2, y + h / 2, w - 4, h - h / 2 - 3);
+    // bottom gradient
+    set_draw_color(activated_color(Color::from_rgb(0xEF, 0xEE, 0xEC)));
+    draw_xyline(x + 2, y + h - 3, x + w - 3);
+    aqua2_radio_round_down_frame(x, y, w, h, c);
+}
+
+fn aqua2_depressed_down_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top outer border
+    set_draw_color(activated_color(Color::from_rgb(0x4C, 0x54, 0xAA)));
+    draw_xyline(x + 3, y, x + w - 4);
+    // side outer borders
+    set_draw_color(activated_color(Color::from_rgb(0x49, 0x4C, 0x8F)));
+    draw_yxline(x, y + 3, y + h - 4);
+    draw_yxline(x + w - 1, y + 3, y + h - 4);
+    // bottom outer border
+    set_draw_color(activated_color(Color::from_rgb(0x43, 0x46, 0x72)));
+    draw_xyline(x + 3, y + h - 1, x + w - 4);
+    // top inner border
+    set_draw_color(activated_color(Color::from_rgb(0xBC, 0xD6, 0xEF)));
+    draw_xyline(x + 3, y + 1, x + w - 4);
+    // side top inner borders
+    set_draw_color(activated_color(Color::from_rgb(0x7C, 0xAB, 0xE9)));
+    draw_yxline(x + 1, y + 3, y + h / 2 - 1);
+    draw_yxline(x + w - 2, y + 3, y + h / 2 - 1);
+    // side bottom inner borders
+    set_draw_color(activated_color(Color::from_rgb(0x5F, 0xA1, 0xEA)));
+    draw_yxline(x + 1, y + h / 2, y + h - 4);
+    draw_yxline(x + w - 2, y + h / 2, y + h - 4);
+    // top corners
+    set_draw_color(activated_color(Color::from_rgb(0x79, 0x81, 0xBC)));
+    draw_arc(x, y, 8, 8, 90.0, 180.0);
+    draw_arc(x + w - 8, y, 8, 8, 0.0, 90.0);
+    // bottom corners
+    set_draw_color(activated_color(Color::from_rgb(0x72, 0x79, 0x96)));
+    draw_arc(x, y + h - 8, 8, 8, 180.0, 270.0);
+    draw_arc(x + w - 8, y + h - 8, 8, 8, 270.0, 360.0);
+}
+
+fn aqua2_depressed_down_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top gradient
+    vertical_gradient(
+        x + 2,
+        y + 2,
+        x + w - 3,
+        y + h / 2 - 1,
+        Color::from_rgb(0xA3, 0xC1, 0xEF),
+        Color::from_rgb(0x67, 0xA1, 0xE9),
+    );
+    // bottom gradient
+    vertical_gradient(
+        x + 2,
+        y + h / 2,
+        x + w - 3,
+        y + h - 2,
+        Color::from_rgb(0x46, 0x93, 0xE9),
+        Color::from_rgb(0xAA, 0xD4, 0xF0),
+    );
+    aqua2_depressed_down_frame(x, y, w, h, c);
+}
+
+fn aqua2_input_thin_down_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top outer border
+    set_draw_color(activated_color(Color::from_rgb(0x9B, 0x9B, 0x9B)));
+    draw_xyline(x, y, x + w - 1);
+    // side and bottom outer borders
+    set_draw_color(activated_color(Color::from_rgb(0xBA, 0xBA, 0xBA)));
+    draw_yxline3(x, y + 1, y + h - 1, x + w - 1, y + 1);
+    // top shadow
+    set_draw_color(activated_color(Color::from_rgb(0xE3, 0xE3, 0xE3)));
+    draw_xyline(x + 1, y + 1, x + w - 2);
+    // inner border
+    set_draw_color(activated_color(Color::from_rgb(0xF5, 0xF5, 0xF5)));
+    draw_yxline3(x + 1, y + h - 2, y + 2, x + w - 2, y + h - 2);
+}
+
+fn aqua2_input_thin_down_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    set_draw_color(activated_color(Color::from_rgb(0xFF, 0xFF, 0xFF)));
+    draw_rectf(x + 2, y + 3, w - 4, h - 4);
+    aqua2_input_thin_down_frame(x, y, w, h, c);
+}
+
+fn aqua2_default_button_up_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top outer border
+    set_draw_color(activated_color(Color::from_rgb(0x4E, 0x59, 0xA6)));
+    draw_xyline(x + 3, y, x + w - 4);
+    // side outer borders
+    set_draw_color(activated_color(Color::from_rgb(0x4C, 0x52, 0x89)));
+    draw_yxline(x, y + 3, y + h - 4);
+    draw_yxline(x + w - 1, y + 3, y + h - 4);
+    // bottom outer border
+    set_draw_color(activated_color(Color::from_rgb(0x48, 0x4F, 0x69)));
+    draw_xyline(x + 3, y + h - 1, x + w - 4);
+    // top inner border
+    set_draw_color(activated_color(Color::from_rgb(0xD0, 0xEA, 0xF6)));
+    draw_xyline(x + 3, y + 1, x + w - 4);
+    // side top inner borders
+    set_draw_color(activated_color(Color::from_rgb(0x7A, 0xBF, 0xEF)));
+    draw_yxline(x + 1, y + 3, y + h / 2 - 1);
+    draw_yxline(x + w - 2, y + 3, y + h / 2 - 1);
+    // side bottom inner borders
+    set_draw_color(activated_color(Color::from_rgb(0x53, 0xAF, 0xEF)));
+    draw_yxline(x + 1, y + h / 2, y + h - 4);
+    draw_yxline(x + w - 2, y + h / 2, y + h - 4);
+    // top corners
+    set_draw_color(activated_color(Color::from_rgb(0x76, 0x80, 0xB5)));
+    draw_arc(x, y, 8, 8, 90.0, 180.0);
+    draw_arc(x + w - 8, y, 8, 8, 0.0, 90.0);
+    // bottom corners
+    set_draw_color(activated_color(Color::from_rgb(0x6F, 0x75, 0x89)));
+    draw_arc(x, y + h - 8, 8, 8, 180.0, 270.0);
+    draw_arc(x + w - 8, y + h - 8, 8, 8, 270.0, 360.0);
+}
+
+fn aqua2_default_button_up_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top gradient
+    vertical_gradient(
+        x + 2,
+        y + 2,
+        x + w - 3,
+        y + h / 2 - 1,
+        Color::from_rgb(0xBF, 0xDC, 0xF7),
+        Color::from_rgb(0x84, 0xC4, 0xF1),
+    );
+    // bottom gradient
+    vertical_gradient(
+        x + 2,
+        y + h / 2,
+        x + w - 3,
+        y + h - 2,
+        Color::from_rgb(0x59, 0xB5, 0xF1),
+        Color::from_rgb(0xBA, 0xE9, 0xF7),
+    );
+    aqua2_default_button_up_frame(x, y, w, h, c);
+}
+
+fn aqua2_tabs_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // top outer border
+    set_draw_color(activated_color(Color::from_rgb(0xAE, 0xAE, 0xAE)));
+    draw_xyline(x + 3, y, x + w - 4);
+    // side outer borders
+    set_draw_color(activated_color(Color::from_rgb(0x9E, 0x9E, 0x9E)));
+    draw_yxline(x, y + 3, y + h - 4);
+    draw_yxline(x + w - 1, y + 3, y + h - 4);
+    // bottom outer border
+    set_draw_color(activated_color(Color::from_rgb(0x8E, 0x8E, 0x8E)));
+    draw_xyline(x + 3, y + h - 1, x + w - 4);
+    // top inner border
+    set_draw_color(activated_color(Color::from_rgb(0xFA, 0xFA, 0xFA)));
+    draw_xyline(x + 3, y + 1, x + w - 4);
+    // side inner borders
+    set_draw_color(activated_color(Color::from_rgb(0xF6, 0xF6, 0xF6)));
+    draw_yxline(x + 1, y + 3, y + h - 4);
+    draw_yxline(x + w - 2, y + 3, y + h - 4);
+    // bottom inner border
+    set_draw_color(activated_color(Color::from_rgb(0xF2, 0xF2, 0xF2)));
+    draw_xyline(x + 3, y + h - 2, x + w - 4);
+    // top corners
+    set_draw_color(activated_color(Color::from_rgb(0xA4, 0xA4, 0xA4)));
+    draw_arc(x, y, 8, 8, 90.0, 180.0);
+    draw_arc(x + w - 8, y, 8, 8, 0.0, 90.0);
+    // bottom corners
+    set_draw_color(activated_color(Color::from_rgb(0x94, 0x94, 0x94)));
+    draw_arc(x, y + h - 8, 8, 8, 180.0, 270.0);
+    draw_arc(x + w - 8, y + h - 8, 8, 8, 270.0, 360.0);
+}
+
+fn aqua2_tabs_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    set_draw_color(activated_color(c));
+    draw_rectf(x + 2, y + 2, w - 4, h - 4);
+    aqua2_tabs_frame(x, y, w, h, c);
+}
+
+fn aqua2_swatch_frame(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    // outer border
+    set_draw_color(activated_color(Color::from_rgb(0xA3, 0xA3, 0xA3)));
+    draw_rect(x, y, w, h);
+    // inner border
+    set_draw_color(activated_color(Color::from_rgb(0xFF, 0xFF, 0xFF)));
+    draw_rect(x + 1, y + 1, w - 2, h - 2);
+}
+
+fn aqua2_swatch_box(x: i32, y: i32, w: i32, h: i32, c: Color) {
+    set_draw_color(activated_color(c));
+    draw_rectf(x + 2, y + 2, w - 4, h - 4);
+    aqua2_swatch_frame(x, y, w, h, c);
+}
+
+fn use_aqua2_scheme() {
+    app::set_scheme(app::Scheme::Gtk);
+    app::set_frame_type_cb(OS_BUTTON_UP_BOX, aqua2_button_up_box, 1, 1, 2, 2);
+    app::set_frame_type2(OS_CHECK_DOWN_BOX, OS_BUTTON_UP_BOX);
+    app::set_frame_type_cb(OS_BUTTON_UP_FRAME, aqua2_button_up_frame, 1, 1, 2, 2);
+    app::set_frame_type2(OS_CHECK_DOWN_FRAME, OS_BUTTON_UP_FRAME);
+    app::set_frame_type_cb(OS_PANEL_THIN_UP_BOX, aqua2_panel_thin_up_box, 1, 1, 2, 2);
+    app::set_frame_type_cb(
+        OS_SPACER_THIN_DOWN_BOX,
+        aqua2_spacer_thin_down_box,
+        1,
+        1,
+        2,
+        2,
+    );
+    app::set_frame_type_cb(OS_PANEL_THIN_UP_FRAME, aqua2_panel_thin_up_frame, 1, 1, 2, 2);
+    app::set_frame_type_cb(
+        OS_SPACER_THIN_DOWN_FRAME,
+        aqua2_spacer_thin_down_frame,
+        1,
+        1,
+        2,
+        2,
+    );
+    app::set_frame_type_cb(
+        OS_RADIO_ROUND_DOWN_BOX,
+        aqua2_radio_round_down_box,
+        2,
+        2,
+        4,
+        4,
+    );
+    app::set_frame_type2(OS_HOVERED_UP_BOX, OS_BUTTON_UP_BOX);
+    app::set_frame_type_cb(OS_DEPRESSED_DOWN_BOX, aqua2_depressed_down_box, 1, 1, 2, 2);
+    app::set_frame_type2(OS_HOVERED_UP_FRAME, OS_BUTTON_UP_FRAME);
+    app::set_frame_type_cb(
+        OS_DEPRESSED_DOWN_FRAME,
+        aqua2_depressed_down_frame,
+        1,
+        1,
+        2,
+        2,
+    );
+    app::set_frame_type_cb(OS_INPUT_THIN_DOWN_BOX, aqua2_input_thin_down_box, 2, 3, 4, 6);
+    app::set_frame_type_cb(
+        OS_INPUT_THIN_DOWN_FRAME,
+        aqua2_input_thin_down_frame,
+        2,
+        3,
+        4,
+        6,
+    );
+    app::set_frame_type_cb(
+        OS_DEFAULT_BUTTON_UP_BOX,
+        aqua2_default_button_up_box,
+        1,
+        1,
+        2,
+        2,
+    );
+    app::set_frame_type2(OS_DEFAULT_HOVERED_UP_BOX, OS_HOVERED_UP_BOX);
+    app::set_frame_type2(OS_DEFAULT_DEPRESSED_DOWN_BOX, OS_DEPRESSED_DOWN_BOX);
+    app::set_frame_type2(OS_TOOLBAR_BUTTON_HOVER_BOX, FrameType::FlatBox);
+    app::set_frame_type_cb(OS_TABS_BOX, aqua2_tabs_box, 2, 1, 4, 2);
+    app::set_frame_type_cb(OS_SWATCH_BOX, aqua2_swatch_box, 2, 2, 4, 4);
+    app::set_frame_type2(OS_MINI_BUTTON_UP_BOX, OS_BUTTON_UP_BOX);
+    app::set_frame_type2(OS_MINI_DEPRESSED_DOWN_BOX, OS_DEPRESSED_DOWN_BOX);
+    app::set_frame_type2(OS_MINI_BUTTON_UP_FRAME, OS_BUTTON_UP_FRAME);
+    app::set_frame_type2(OS_MINI_DEPRESSED_DOWN_FRAME, OS_DEPRESSED_DOWN_FRAME);
+    app::set_frame_type2(FrameType::UpBox, OS_BUTTON_UP_BOX);
+    app::set_frame_type2(FrameType::DownBox, OS_BUTTON_UP_BOX);
+    app::set_frame_type2(FrameType::RoundDownBox, OS_RADIO_ROUND_DOWN_BOX);
+    app::set_frame_type2(OS_BG_BOX, FrameType::FlatBox);
+    // app::set_frame_type_cb(OS_BG_DOWN_BOX, OS_BG_BOX);
+}
+
+fn use_aqua2_colors() {
+    app::background(BG_COL.0, BG_COL.1, BG_COL.2);
+    app::foreground(FG_COL.0, FG_COL.1, FG_COL.2);
+    app::background2(BG2_COL.0, BG2_COL.1, BG2_COL.2);
+    app::set_color(Color::Inactive, 0x4D, 0x4D, 0x69);
+    app::set_color(Color::Selection, 0x30, 0x60, 0xF6);
+    app::set_color(Color::Free, 0xFB, 0xFB, 0xFB);
+    Tooltip::set_color(Color::from_rgb(0xFF, 0xFF, 0xC7));
+    Tooltip::set_text_color(Color::ForeGround);
+}
+
+pub(crate) fn use_aqua2_theme() {
+    use_aqua2_scheme();
+    use_aqua2_colors();
+    use_native_settings();
+}
diff --git a/src/widget_themes/mod.rs b/src/widget_themes/mod.rs
index 851c4a6..1355bf9 100644
--- a/src/widget_themes/mod.rs
+++ b/src/widget_themes/mod.rs
@@ -1,16 +1,18 @@
 #![allow(unused_variables)]
 #![allow(clippy::many_single_char_names)]
 
+use crate::activated_color;
 use fltk::{
     app,
     draw::*,
     enums::{Color, FrameType},
     misc::Tooltip,
 };
-use crate::activated_color;
 
 pub(crate) mod aero;
 pub(crate) mod aqua;
+#[cfg(target_os = "macos")]
+pub(crate) mod aqua2;
 pub(crate) mod blue;
 pub(crate) mod classic;
 pub(crate) mod dark;