diff --git a/docs/features.md b/docs/features.md
index 4531c49d..93e1f21f 100644
--- a/docs/features.md
+++ b/docs/features.md
@@ -174,7 +174,7 @@ Jay supports the following wayland protocols:
 | wl_shm                                               | 2               |               |
 | wl_subcompositor                                     | 1               |               |
 | wp_alpha_modifier_v1                                 | 1               |               |
-| wp_color_manager_v1                                  | 1               |               |
+| wp_color_manager_v1                                  | 2               |               |
 | wp_commit_timing_manager_v1                          | 1               |               |
 | wp_content_type_manager_v1                           | 1               |               |
 | wp_cursor_shape_manager_v1                           | 2               |               |
diff --git a/src/client/objects.rs b/src/client/objects.rs
index 1b489ac9..d4449f84 100644
--- a/src/client/objects.rs
+++ b/src/client/objects.rs
@@ -2,7 +2,10 @@ use {
     crate::{
         client::{Client, ClientError},
         ifs::{
-            color_management::wp_image_description_v1::WpImageDescriptionV1,
+            color_management::{
+                wp_image_description_reference_v1::WpImageDescriptionReferenceV1,
+                wp_image_description_v1::WpImageDescriptionV1,
+            },
             ext_foreign_toplevel_handle_v1::ExtForeignToplevelHandleV1,
             ext_image_capture_source_v1::ExtImageCaptureSourceV1,
             ext_image_copy::ext_image_copy_capture_session_v1::ExtImageCopyCaptureSessionV1,
@@ -48,10 +51,11 @@ use {
             ExtImageCopyCaptureSessionV1Id, ExtWorkspaceGroupHandleV1Id, JayHeadErrorV1Id,
             JayOutputId, JayScreencastId, JayToplevelId, JayWorkspaceId, WlBufferId,
             WlDataSourceId, WlOutputId, WlPointerId, WlRegionId, WlRegistryId, WlSeatId,
-            WlSurfaceId, WpDrmLeaseConnectorV1Id, WpImageDescriptionV1Id,
-            WpLinuxDrmSyncobjTimelineV1Id, XdgPopupId, XdgPositionerId, XdgSurfaceId,
-            XdgToplevelId, XdgWmBaseId, ZwlrDataControlSourceV1Id, ZwlrOutputHeadV1Id,
-            ZwlrOutputModeV1Id, ZwpPrimarySelectionSourceV1Id, ZwpTabletToolV2Id,
+            WlSurfaceId, WpDrmLeaseConnectorV1Id, WpImageDescriptionReferenceV1Id,
+            WpImageDescriptionV1Id, WpLinuxDrmSyncobjTimelineV1Id, XdgPopupId, XdgPositionerId,
+            XdgSurfaceId, XdgToplevelId, XdgWmBaseId, ZwlrDataControlSourceV1Id,
+            ZwlrOutputHeadV1Id, ZwlrOutputModeV1Id, ZwpPrimarySelectionSourceV1Id,
+            ZwpTabletToolV2Id,
         },
     },
     std::{cell::RefCell, rc::Rc},
@@ -94,6 +98,8 @@ pub struct Objects {
     pub ext_workspace_groups:
         CopyHashMap<ExtWorkspaceGroupHandleV1Id, Rc<ExtWorkspaceGroupHandleV1>>,
     pub wp_image_description: CopyHashMap<WpImageDescriptionV1Id, Rc<WpImageDescriptionV1>>,
+    pub wp_image_description_reference:
+        CopyHashMap<WpImageDescriptionReferenceV1Id, Rc<WpImageDescriptionReferenceV1>>,
     pub jay_head_errors: CopyHashMap<JayHeadErrorV1Id, Rc<JayHeadErrorV1>>,
     ids: RefCell<Vec<usize>>,
 }
@@ -136,6 +142,7 @@ impl Objects {
             ext_data_sources: Default::default(),
             ext_workspace_groups: Default::default(),
             wp_image_description: Default::default(),
+            wp_image_description_reference: Default::default(),
             jay_head_errors: Default::default(),
             ids: RefCell::new(vec![]),
         }
@@ -182,6 +189,8 @@ impl Objects {
         self.ext_data_sources.clear();
         self.ext_workspace_groups.clear();
         self.jay_head_errors.clear();
+        self.wp_image_description.clear();
+        self.wp_image_description_reference.clear();
     }
 
     pub fn id<T>(&self, client_data: &Client) -> Result<T, ClientError>
diff --git a/src/cmm/cmm_eotf.rs b/src/cmm/cmm_eotf.rs
index 40cf1ccb..89e123aa 100644
--- a/src/cmm/cmm_eotf.rs
+++ b/src/cmm/cmm_eotf.rs
@@ -13,6 +13,7 @@ pub enum Eotf {
     Log316,
     St428,
     Pow(EotfPow),
+    CompoundPower24,
 }
 
 const MUL: u32 = 10_000;
diff --git a/src/gfx_apis/vulkan/eotfs.rs b/src/gfx_apis/vulkan/eotfs.rs
index 61d27a23..bf6ee707 100644
--- a/src/gfx_apis/vulkan/eotfs.rs
+++ b/src/gfx_apis/vulkan/eotfs.rs
@@ -11,6 +11,7 @@ pub const EOTF_LOG316: u32 = 9;
 pub const EOTF_ST428: u32 = 10;
 pub const EOTF_POW: u32 = 11;
 pub const EOTF_GAMMA24: u32 = 12;
+pub const EOTF_COMPOUND_POWER_2_4: u32 = 13;
 
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Linearize)]
 pub enum VulkanEotf {
@@ -25,6 +26,7 @@ pub enum VulkanEotf {
     Log316,
     St428,
     Pow,
+    CompoundPower24,
 }
 
 pub trait EotfExt: Sized {
@@ -54,6 +56,7 @@ impl EotfExt for Eotf {
             Log316,
             St428,
             Pow,
+            CompoundPower24,
         }
     }
 }
@@ -72,6 +75,7 @@ impl VulkanEotf {
             Self::Log316 => EOTF_LOG316,
             Self::St428 => EOTF_ST428,
             Self::Pow => EOTF_POW,
+            Self::CompoundPower24 => EOTF_COMPOUND_POWER_2_4,
         }
     }
 }
diff --git a/src/gfx_apis/vulkan/renderer.rs b/src/gfx_apis/vulkan/renderer.rs
index 360b18b1..55ea4867 100644
--- a/src/gfx_apis/vulkan/renderer.rs
+++ b/src/gfx_apis/vulkan/renderer.rs
@@ -766,7 +766,7 @@ impl VulkanRenderer {
                 }
             }
         };
-        for (index, op) in opts.into_iter().enumerate() {
+        for (index, op) in opts.iter().enumerate() {
             match op {
                 GfxApiOpt::Sync => {
                     sync(memory);
diff --git a/src/gfx_apis/vulkan/shaders/eotfs.glsl b/src/gfx_apis/vulkan/shaders/eotfs.glsl
index 5538a96b..139f7a97 100644
--- a/src/gfx_apis/vulkan/shaders/eotfs.glsl
+++ b/src/gfx_apis/vulkan/shaders/eotfs.glsl
@@ -15,6 +15,7 @@
 #define TF_ST428 10
 #define TF_POW 11
 #define TF_GAMMA24 12
+#define TF_COMPOUND_POWER_2_4 13
 
 vec3 eotf_bt1886(vec3 c) {
     c = clamp(c, 0.0, 1.0);
@@ -101,6 +102,22 @@ vec3 inv_eotf_st428(vec3 c) {
     return pow(vec3(48.0) * c / vec3(52.37), vec3(1.0 / 2.6));
 }
 
+vec3 eotf_compound_power_2_4(vec3 c) {
+    return mix(
+        c * vec3(1.0 / 12.92),
+        pow((c + vec3(0.055)) * vec3(1.0 / 1.055), vec3(2.4)),
+        greaterThanEqual(c, vec3(0.04045))
+    );
+}
+
+vec3 inv_eotf_compound_power_2_4(vec3 c) {
+    return mix(
+        vec3(12.92) * c,
+        vec3(1.055) * pow(c, vec3(1.0 / 2.4)) - vec3(0.055),
+        greaterThanEqual(c, vec3(0.0031308))
+    );
+}
+
 vec3 apply_eotf(vec3 c) {
     switch (eotf) {
         case TF_LINEAR: return c;
@@ -114,6 +131,7 @@ vec3 apply_eotf(vec3 c) {
         case TF_LOG316: return eotf_log316(c);
         case TF_ST428: return eotf_st428(c);
         case TF_POW: return sign(c) * pow(abs(c), vec3(cm_eotf_args.arg1));
+        case TF_COMPOUND_POWER_2_4: return eotf_compound_power_2_4(c);
         default: return c;
     }
 }
@@ -131,6 +149,7 @@ vec3 apply_inv_eotf(vec3 c) {
         case TF_LOG316: return inv_eotf_log316(c);
         case TF_ST428: return inv_eotf_st428(c);
         case TF_POW: return sign(c) * pow(abs(c), vec3(cm_inv_eotf_args.arg1));
+        case TF_COMPOUND_POWER_2_4: return inv_eotf_compound_power_2_4(c);
         default: return c;
     }
 }
diff --git a/src/gfx_apis/vulkan/shaders_bin/out.frag.spv b/src/gfx_apis/vulkan/shaders_bin/out.frag.spv
index 749e0ff6..d7421166 100644
Binary files a/src/gfx_apis/vulkan/shaders_bin/out.frag.spv and b/src/gfx_apis/vulkan/shaders_bin/out.frag.spv differ
diff --git a/src/gfx_apis/vulkan/shaders_bin/tex.frag.spv b/src/gfx_apis/vulkan/shaders_bin/tex.frag.spv
index bc8cb903..6146efa8 100644
Binary files a/src/gfx_apis/vulkan/shaders_bin/tex.frag.spv and b/src/gfx_apis/vulkan/shaders_bin/tex.frag.spv differ
diff --git a/src/gfx_apis/vulkan/shaders_hash.txt b/src/gfx_apis/vulkan/shaders_hash.txt
index cbe56af7..9d144084 100644
--- a/src/gfx_apis/vulkan/shaders_hash.txt
+++ b/src/gfx_apis/vulkan/shaders_hash.txt
@@ -1,4 +1,4 @@
-f49076a6465a6790c72a6d290c13d5f14c7dae8ae3eed6ca71c57424e3306f66 src/gfx_apis/vulkan/shaders/eotfs.glsl
+b6a0df1e231fab533499329636b7a580384784418baee06c147af5fcc384cf5c src/gfx_apis/vulkan/shaders/eotfs.glsl
 8a38df18851cd13884499820f26939fb7319f45d913d867f254d8118d59fb117 src/gfx_apis/vulkan/shaders/fill.common.glsl
 21c488d12aa5ad2f109ec44cb856dfe837e02ea9025b5ed64439d742c17cbf30 src/gfx_apis/vulkan/shaders/fill.frag
 4fb481d8d73afdfb0d8f077eb8665d86f06c8a32a91e44ed369ef5dff554646d src/gfx_apis/vulkan/shaders/fill.vert
diff --git a/src/ifs/color_management.rs b/src/ifs/color_management.rs
index d55efdbf..ed955e1d 100644
--- a/src/ifs/color_management.rs
+++ b/src/ifs/color_management.rs
@@ -1,3 +1,4 @@
+use crate::object::Version;
 pub use consts::*;
 
 pub mod wp_color_management_output_v1;
@@ -6,8 +7,13 @@ pub mod wp_color_manager_v1;
 pub mod wp_image_description_creator_icc_v1;
 pub mod wp_image_description_creator_params_v1;
 pub mod wp_image_description_info_v1;
+pub mod wp_image_description_reference_v1;
 pub mod wp_image_description_v1;
 
+const UNIQUE_CM_IDS_SINCE: Version = Version(2);
+const SRGB_DEPRECATED_SINCE: Version = Version(2);
+const COMPOUND_POWER_2_4_SINCE: Version = Version(2);
+
 const PRIMARIES_MUL: f64 = 1_000_000.0;
 const PRIMARIES_MUL_INV: f64 = 1.0 / PRIMARIES_MUL;
 
@@ -55,6 +61,7 @@ mod consts {
     pub const TRANSFER_FUNCTION_ST2084_PQ: u32 = 11;
     pub const TRANSFER_FUNCTION_ST428: u32 = 12;
     pub const TRANSFER_FUNCTION_HLG: u32 = 13;
+    pub const TRANSFER_FUNCTION_COMPOUND_POWER_2_4: u32 = 14;
 
     pub const CAUSE_LOW_VERSION: u32 = 0;
     pub const CAUSE_UNSUPPORTED: u32 = 1;
diff --git a/src/ifs/color_management/wp_color_management_surface_feedback_v1.rs b/src/ifs/color_management/wp_color_management_surface_feedback_v1.rs
index 04abbd39..50f3e2f6 100644
--- a/src/ifs/color_management/wp_color_management_surface_feedback_v1.rs
+++ b/src/ifs/color_management/wp_color_management_surface_feedback_v1.rs
@@ -3,7 +3,10 @@ use {
         client::{Client, ClientError},
         cmm::cmm_description::ColorDescription,
         ifs::{
-            color_management::wp_image_description_v1::WpImageDescriptionV1, wl_surface::WlSurface,
+            color_management::{
+                UNIQUE_CM_IDS_SINCE, wp_image_description_v1::WpImageDescriptionV1,
+            },
+            wl_surface::WlSurface,
         },
         leaks::Tracker,
         object::{Object, Version},
@@ -43,10 +46,18 @@ impl WpColorManagementSurfaceFeedbackV1 {
     }
 
     pub fn send_preferred_changed(&self, cd: &ColorDescription) {
-        self.client.event(PreferredChanged {
-            self_id: self.id,
-            identity: cd.id.raw() as u32,
-        });
+        let identity = cd.id.raw();
+        if self.version >= UNIQUE_CM_IDS_SINCE {
+            self.client.event(PreferredChanged2 {
+                self_id: self.id,
+                identity,
+            });
+        } else {
+            self.client.event(PreferredChanged {
+                self_id: self.id,
+                identity: identity as u32,
+            });
+        }
     }
 }
 
diff --git a/src/ifs/color_management/wp_color_manager_v1.rs b/src/ifs/color_management/wp_color_manager_v1.rs
index 71977dd5..1b75c0b4 100644
--- a/src/ifs/color_management/wp_color_manager_v1.rs
+++ b/src/ifs/color_management/wp_color_manager_v1.rs
@@ -4,8 +4,9 @@ use {
         globals::{Global, GlobalName},
         ifs::{
             color_management::{
-                FEATURE_EXTENDED_TARGET_VOLUME, FEATURE_SET_MASTERING_DISPLAY_PRIMARIES,
-                FEATURE_SET_TF_POWER,
+                COMPOUND_POWER_2_4_SINCE, FEATURE_EXTENDED_TARGET_VOLUME,
+                FEATURE_SET_MASTERING_DISPLAY_PRIMARIES, FEATURE_SET_TF_POWER,
+                SRGB_DEPRECATED_SINCE, TRANSFER_FUNCTION_COMPOUND_POWER_2_4,
                 consts::{
                     FEATURE_PARAMETRIC, FEATURE_SET_LUMINANCES, FEATURE_SET_PRIMARIES,
                     FEATURE_WINDOWS_SCRGB, PRIMARIES_ADOBE_RGB, PRIMARIES_BT2020,
@@ -90,10 +91,15 @@ impl WpColorManagerV1 {
         self.send_supported_tf_named(TRANSFER_FUNCTION_EXT_LINEAR);
         self.send_supported_tf_named(TRANSFER_FUNCTION_LOG_100);
         self.send_supported_tf_named(TRANSFER_FUNCTION_LOG_316);
-        self.send_supported_tf_named(TRANSFER_FUNCTION_SRGB);
-        self.send_supported_tf_named(TRANSFER_FUNCTION_EXT_SRGB);
+        if self.version < SRGB_DEPRECATED_SINCE {
+            self.send_supported_tf_named(TRANSFER_FUNCTION_SRGB);
+            self.send_supported_tf_named(TRANSFER_FUNCTION_EXT_SRGB);
+        }
         self.send_supported_tf_named(TRANSFER_FUNCTION_ST2084_PQ);
         self.send_supported_tf_named(TRANSFER_FUNCTION_ST428);
+        if self.version >= COMPOUND_POWER_2_4_SINCE {
+            self.send_supported_tf_named(TRANSFER_FUNCTION_COMPOUND_POWER_2_4);
+        }
         self.send_supported_primaries_named(PRIMARIES_SRGB);
         self.send_supported_primaries_named(PRIMARIES_PAL_M);
         self.send_supported_primaries_named(PRIMARIES_PAL);
@@ -249,6 +255,25 @@ impl WpColorManagerV1RequestHandler for WpColorManagerV1 {
         obj.send_ready();
         Ok(())
     }
+
+    fn get_image_description(
+        &self,
+        req: GetImageDescription,
+        _slf: &Rc<Self>,
+    ) -> Result<(), Self::Error> {
+        let desc = self.client.lookup(req.reference)?;
+        let obj = Rc::new(WpImageDescriptionV1 {
+            id: req.image_description,
+            client: self.client.clone(),
+            version: self.version,
+            tracker: Default::default(),
+            description: Some(desc.description.clone()),
+        });
+        track!(self.client, obj);
+        self.client.add_client_obj(&obj)?;
+        obj.send_ready();
+        Ok(())
+    }
 }
 
 global_base!(
@@ -263,7 +288,7 @@ impl Global for WpColorManagerV1Global {
     }
 
     fn version(&self) -> u32 {
-        1
+        2
     }
 
     fn exposed(&self, state: &State) -> bool {
diff --git a/src/ifs/color_management/wp_image_description_creator_params_v1.rs b/src/ifs/color_management/wp_image_description_creator_params_v1.rs
index cc94695d..f6b7e4e8 100644
--- a/src/ifs/color_management/wp_image_description_creator_params_v1.rs
+++ b/src/ifs/color_management/wp_image_description_creator_params_v1.rs
@@ -7,7 +7,8 @@ use {
             cmm_primaries::{NamedPrimaries, Primaries},
         },
         ifs::color_management::{
-            MIN_LUM_MUL_INV, PRIMARIES_MUL_INV,
+            COMPOUND_POWER_2_4_SINCE, MIN_LUM_MUL_INV, PRIMARIES_MUL_INV, SRGB_DEPRECATED_SINCE,
+            TRANSFER_FUNCTION_COMPOUND_POWER_2_4,
             consts::{
                 PRIMARIES_ADOBE_RGB, PRIMARIES_BT2020, PRIMARIES_CIE1931_XYZ, PRIMARIES_DCI_P3,
                 PRIMARIES_DISPLAY_P3, PRIMARIES_GENERIC_FILM, PRIMARIES_NTSC, PRIMARIES_PAL,
@@ -116,10 +117,13 @@ impl WpImageDescriptionCreatorParamsV1RequestHandler for WpImageDescriptionCreat
             TRANSFER_FUNCTION_EXT_LINEAR => Eotf::Linear,
             TRANSFER_FUNCTION_LOG_100 => Eotf::Log100,
             TRANSFER_FUNCTION_LOG_316 => Eotf::Log316,
-            TRANSFER_FUNCTION_SRGB => Eotf::Gamma22,
-            TRANSFER_FUNCTION_EXT_SRGB => Eotf::Gamma22,
+            TRANSFER_FUNCTION_SRGB if self.version < SRGB_DEPRECATED_SINCE => Eotf::Gamma22,
+            TRANSFER_FUNCTION_EXT_SRGB if self.version < SRGB_DEPRECATED_SINCE => Eotf::Gamma22,
             TRANSFER_FUNCTION_ST2084_PQ => Eotf::St2084Pq,
             TRANSFER_FUNCTION_ST428 => Eotf::St428,
+            TRANSFER_FUNCTION_COMPOUND_POWER_2_4 if self.version >= COMPOUND_POWER_2_4_SINCE => {
+                Eotf::CompoundPower24
+            }
             _ => {
                 return Err(WpImageDescriptionCreatorParamsV1Error::UnsupportedTf(
                     req.tf,
diff --git a/src/ifs/color_management/wp_image_description_info_v1.rs b/src/ifs/color_management/wp_image_description_info_v1.rs
index 7a745389..9b19a15f 100644
--- a/src/ifs/color_management/wp_image_description_info_v1.rs
+++ b/src/ifs/color_management/wp_image_description_info_v1.rs
@@ -10,9 +10,10 @@ use {
             MIN_LUM_MUL, PRIMARIES_ADOBE_RGB, PRIMARIES_BT2020, PRIMARIES_CIE1931_XYZ,
             PRIMARIES_DCI_P3, PRIMARIES_DISPLAY_P3, PRIMARIES_GENERIC_FILM, PRIMARIES_MUL,
             PRIMARIES_NTSC, PRIMARIES_PAL, PRIMARIES_PAL_M, PRIMARIES_SRGB,
-            TRANSFER_FUNCTION_BT1886, TRANSFER_FUNCTION_EXT_LINEAR, TRANSFER_FUNCTION_GAMMA22,
-            TRANSFER_FUNCTION_GAMMA28, TRANSFER_FUNCTION_LOG_100, TRANSFER_FUNCTION_LOG_316,
-            TRANSFER_FUNCTION_ST240, TRANSFER_FUNCTION_ST428, TRANSFER_FUNCTION_ST2084_PQ,
+            TRANSFER_FUNCTION_BT1886, TRANSFER_FUNCTION_COMPOUND_POWER_2_4,
+            TRANSFER_FUNCTION_EXT_LINEAR, TRANSFER_FUNCTION_GAMMA22, TRANSFER_FUNCTION_GAMMA28,
+            TRANSFER_FUNCTION_LOG_100, TRANSFER_FUNCTION_LOG_316, TRANSFER_FUNCTION_ST240,
+            TRANSFER_FUNCTION_ST428, TRANSFER_FUNCTION_ST2084_PQ,
         },
         leaks::Tracker,
         object::{Object, Version},
@@ -51,6 +52,7 @@ impl WpImageDescriptionInfoV1 {
                     self.send_tf_power(e);
                     break 'tf;
                 }
+                Eotf::CompoundPower24 => TRANSFER_FUNCTION_COMPOUND_POWER_2_4,
             };
             self.send_tf_named(tf);
         }
diff --git a/src/ifs/color_management/wp_image_description_reference_v1.rs b/src/ifs/color_management/wp_image_description_reference_v1.rs
new file mode 100644
index 00000000..ca65eaac
--- /dev/null
+++ b/src/ifs/color_management/wp_image_description_reference_v1.rs
@@ -0,0 +1,48 @@
+use {
+    crate::{
+        client::{Client, ClientError},
+        cmm::cmm_description::ColorDescription,
+        leaks::Tracker,
+        object::{Object, Version},
+        wire::{WpImageDescriptionReferenceV1Id, wp_image_description_reference_v1::*},
+    },
+    std::rc::Rc,
+    thiserror::Error,
+};
+
+#[expect(dead_code)]
+pub struct WpImageDescriptionReferenceV1 {
+    pub id: WpImageDescriptionReferenceV1Id,
+    pub client: Rc<Client>,
+    pub tracker: Tracker<Self>,
+    pub description: Rc<ColorDescription>,
+}
+
+impl WpImageDescriptionReferenceV1RequestHandler for WpImageDescriptionReferenceV1 {
+    type Error = WpImageDescriptionReferenceV1Error;
+
+    fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        self.client.remove_obj(self)?;
+        Ok(())
+    }
+}
+
+object_base! {
+    self = WpImageDescriptionReferenceV1;
+    version = Version(1);
+}
+
+impl Object for WpImageDescriptionReferenceV1 {}
+
+dedicated_add_obj!(
+    WpImageDescriptionReferenceV1,
+    WpImageDescriptionReferenceV1Id,
+    wp_image_description_reference
+);
+
+#[derive(Debug, Error)]
+pub enum WpImageDescriptionReferenceV1Error {
+    #[error(transparent)]
+    ClientError(Box<ClientError>),
+}
+efrom!(WpImageDescriptionReferenceV1Error, ClientError);
diff --git a/src/ifs/color_management/wp_image_description_v1.rs b/src/ifs/color_management/wp_image_description_v1.rs
index 1813404c..4fb82762 100644
--- a/src/ifs/color_management/wp_image_description_v1.rs
+++ b/src/ifs/color_management/wp_image_description_v1.rs
@@ -2,7 +2,9 @@ use {
     crate::{
         client::{Client, ClientError},
         cmm::cmm_description::ColorDescription,
-        ifs::color_management::wp_image_description_info_v1::WpImageDescriptionInfoV1,
+        ifs::color_management::{
+            UNIQUE_CM_IDS_SINCE, wp_image_description_info_v1::WpImageDescriptionInfoV1,
+        },
         leaks::Tracker,
         object::{Object, Version},
         wire::{WpImageDescriptionV1Id, wp_image_description_v1::*},
@@ -29,10 +31,18 @@ impl WpImageDescriptionV1 {
     }
 
     pub fn send_ready(&self) {
-        self.client.event(Ready {
-            self_id: self.id,
-            identity: self.description.as_ref().unwrap().id.raw() as u32,
-        });
+        let identity = self.description.as_ref().unwrap().id.raw();
+        if self.version >= UNIQUE_CM_IDS_SINCE {
+            self.client.event(Ready2 {
+                self_id: self.id,
+                identity,
+            });
+        } else {
+            self.client.event(Ready {
+                self_id: self.id,
+                identity: identity as u32,
+            });
+        }
     }
 }
 
diff --git a/src/theme.rs b/src/theme.rs
index 6c711c3f..91602aeb 100644
--- a/src/theme.rs
+++ b/src/theme.rs
@@ -108,6 +108,13 @@ impl Color {
         fn gamma28(c: f32) -> f32 {
             c.signum() * c.abs().powf(2.8)
         }
+        fn compound_power_2_4(c: f32) -> f32 {
+            if c < 0.04045 {
+                c / 12.92
+            } else {
+                ((c + 0.055) / 1.055).powf(2.4)
+            }
+        }
         macro_rules! convert {
             ($tf:ident) => {{
                 r = $tf(r);
@@ -135,6 +142,7 @@ impl Color {
                 let pow = |c: f32| -> f32 { c.signum() * c.abs().powf(e) };
                 convert!(pow)
             }
+            Eotf::CompoundPower24 => convert!(compound_power_2_4),
         }
         Self { r, g, b, a: 1.0 }
     }
@@ -237,6 +245,13 @@ impl Color {
         fn gamma28(c: f32) -> f32 {
             c.signum() * c.abs().powf(1.0 / 2.8)
         }
+        fn compound_power_2_4(c: f32) -> f32 {
+            if c < 0.0031308 {
+                12.92 * c
+            } else {
+                1.055 * c.powf(1.0 / 2.4) - 0.055
+            }
+        }
         macro_rules! convert {
             ($tf:ident) => {{
                 for c in &mut res[..3] {
@@ -270,6 +285,7 @@ impl Color {
                     let pow = |c: f32| -> f32 { c.signum() * c.abs().powf(e) };
                     convert!(pow)
                 }
+                Eotf::CompoundPower24 => convert!(compound_power_2_4),
             }
             if self.a < 1.0 {
                 for c in &mut res[..3] {
diff --git a/wire/wp_color_management_surface_feedback_v1.txt b/wire/wp_color_management_surface_feedback_v1.txt
index 573fe877..fbb9b88c 100644
--- a/wire/wp_color_management_surface_feedback_v1.txt
+++ b/wire/wp_color_management_surface_feedback_v1.txt
@@ -12,3 +12,7 @@ request get_preferred {
 request get_preferred_parametric {
     image_description: id(wp_image_description_v1) (new),
 }
+
+event preferred_changed2 (since = 2) {
+    identity: u64,
+}
diff --git a/wire/wp_color_manager_v1.txt b/wire/wp_color_manager_v1.txt
index 86f837ab..0634d123 100644
--- a/wire/wp_color_manager_v1.txt
+++ b/wire/wp_color_manager_v1.txt
@@ -46,3 +46,8 @@ event supported_primaries_named {
 
 event done {
 }
+
+request get_image_description (since = 2) {
+    image_description: id(wp_image_description_v1) (new),
+    reference: id(wp_image_description_reference_v1),
+}
diff --git a/wire/wp_image_description_reference_v1.txt b/wire/wp_image_description_reference_v1.txt
new file mode 100644
index 00000000..fdecd8b2
--- /dev/null
+++ b/wire/wp_image_description_reference_v1.txt
@@ -0,0 +1,2 @@
+request destroy (destructor) {
+}
diff --git a/wire/wp_image_description_v1.txt b/wire/wp_image_description_v1.txt
index a99945d4..12864ab0 100644
--- a/wire/wp_image_description_v1.txt
+++ b/wire/wp_image_description_v1.txt
@@ -13,3 +13,7 @@ event ready {
 request get_information {
     information: id(wp_image_description_info_v1) (new),
 }
+
+event ready2 (since = 2) {
+    identity: u64,
+}