diff --git a/lib/gocardless_pro.rb b/lib/gocardless_pro.rb
index ba22201..bab1ca2 100644
--- a/lib/gocardless_pro.rb
+++ b/lib/gocardless_pro.rb
@@ -84,6 +84,9 @@ module GoCardlessPro
 require_relative 'gocardless_pro/resources/institution'
 require_relative 'gocardless_pro/services/institutions_service'
 
+require_relative 'gocardless_pro/resources/logo'
+require_relative 'gocardless_pro/services/logos_service'
+
 require_relative 'gocardless_pro/resources/mandate'
 require_relative 'gocardless_pro/services/mandates_service'
 
@@ -102,6 +105,9 @@ module GoCardlessPro
 require_relative 'gocardless_pro/resources/payer_authorisation'
 require_relative 'gocardless_pro/services/payer_authorisations_service'
 
+require_relative 'gocardless_pro/resources/payer_theme'
+require_relative 'gocardless_pro/services/payer_themes_service'
+
 require_relative 'gocardless_pro/resources/payment'
 require_relative 'gocardless_pro/services/payments_service'
 
diff --git a/lib/gocardless_pro/client.rb b/lib/gocardless_pro/client.rb
index 4e8d8eb..f50b0ae 100644
--- a/lib/gocardless_pro/client.rb
+++ b/lib/gocardless_pro/client.rb
@@ -78,6 +78,11 @@ def institutions
       @institutions ||= Services::InstitutionsService.new(@api_service)
     end
 
+    # Access to the service for logo to make API calls
+    def logos
+      @logos ||= Services::LogosService.new(@api_service)
+    end
+
     # Access to the service for mandate to make API calls
     def mandates
       @mandates ||= Services::MandatesService.new(@api_service)
@@ -108,6 +113,11 @@ def payer_authorisations
       @payer_authorisations ||= Services::PayerAuthorisationsService.new(@api_service)
     end
 
+    # Access to the service for payer_theme to make API calls
+    def payer_themes
+      @payer_themes ||= Services::PayerThemesService.new(@api_service)
+    end
+
     # Access to the service for payment to make API calls
     def payments
       @payments ||= Services::PaymentsService.new(@api_service)
@@ -218,7 +228,7 @@ def default_options
           'User-Agent' => "#{user_agent}",
           'Content-Type' => 'application/json',
           'GoCardless-Client-Library' => 'gocardless-pro-ruby',
-          'GoCardless-Client-Version' => '2.55.0',
+          'GoCardless-Client-Version' => '2.56.0',
         },
       }
     end
diff --git a/lib/gocardless_pro/resources/logo.rb b/lib/gocardless_pro/resources/logo.rb
new file mode 100644
index 0000000..e171847
--- /dev/null
+++ b/lib/gocardless_pro/resources/logo.rb
@@ -0,0 +1,38 @@
+#
+# This client is automatically generated from a template and JSON schema definition.
+# See https://github.com/gocardless/gocardless-pro-ruby#contributing before editing.
+#
+
+require 'uri'
+
+module GoCardlessPro
+  # A module containing classes for each of the resources in the GC Api
+  module Resources
+    # Represents an instance of a logo resource returned from the API
+
+    # Logos are image uploads that, when associated with a creditor, are shown
+    # on the [billing request flow](#billing-requests-billing-request-flows)
+    # payment pages.
+    class Logo
+      attr_reader :id
+
+      # Initialize a logo resource instance
+      # @param object [Hash] an object returned from the API
+      def initialize(object, response = nil)
+        @object = object
+
+        @id = object['id']
+        @response = response
+      end
+
+      def api_response
+        ApiResponse.new(@response)
+      end
+
+      # Provides the logo resource as a hash of all its readable attributes
+      def to_h
+        @object
+      end
+    end
+  end
+end
diff --git a/lib/gocardless_pro/resources/payer_theme.rb b/lib/gocardless_pro/resources/payer_theme.rb
new file mode 100644
index 0000000..95e8ce2
--- /dev/null
+++ b/lib/gocardless_pro/resources/payer_theme.rb
@@ -0,0 +1,36 @@
+#
+# This client is automatically generated from a template and JSON schema definition.
+# See https://github.com/gocardless/gocardless-pro-ruby#contributing before editing.
+#
+
+require 'uri'
+
+module GoCardlessPro
+  # A module containing classes for each of the resources in the GC Api
+  module Resources
+    # Represents an instance of a payer_theme resource returned from the API
+
+    # Custom colour themes for payment pages and customer notifications.
+    class PayerTheme
+      attr_reader :id
+
+      # Initialize a payer_theme resource instance
+      # @param object [Hash] an object returned from the API
+      def initialize(object, response = nil)
+        @object = object
+
+        @id = object['id']
+        @response = response
+      end
+
+      def api_response
+        ApiResponse.new(@response)
+      end
+
+      # Provides the payer_theme resource as a hash of all its readable attributes
+      def to_h
+        @object
+      end
+    end
+  end
+end
diff --git a/lib/gocardless_pro/services/logos_service.rb b/lib/gocardless_pro/services/logos_service.rb
new file mode 100644
index 0000000..09addf7
--- /dev/null
+++ b/lib/gocardless_pro/services/logos_service.rb
@@ -0,0 +1,48 @@
+require_relative './base_service'
+
+# encoding: utf-8
+#
+# This client is automatically generated from a template and JSON schema definition.
+# See https://github.com/gocardless/gocardless-pro-ruby#contributing before editing.
+#
+
+module GoCardlessPro
+  module Services
+    # Service for making requests to the Logo endpoints
+    class LogosService < BaseService
+      # Creates a new logo associated with a creditor. If a creditor already has a
+      # logo, this will update the existing logo linked to the creditor.
+      # Example URL: /branding/logos
+      # @param options [Hash] parameters as a hash, under a params key.
+      def create_for_creditor(options = {})
+        path = '/branding/logos'
+
+        params = options.delete(:params) || {}
+        options[:params] = {}
+        options[:params][envelope_key] = params
+
+        options[:retry_failures] = true
+
+        response = make_request(:post, path, options)
+
+        return if response.body.nil?
+
+        Resources::Logo.new(unenvelope_body(response.body), response)
+      end
+
+      private
+
+      # Unenvelope the response of the body using the service's `envelope_key`
+      #
+      # @param body [Hash]
+      def unenvelope_body(body)
+        body[envelope_key] || body['data']
+      end
+
+      # return the key which API responses will envelope data under
+      def envelope_key
+        'logos'
+      end
+    end
+  end
+end
diff --git a/lib/gocardless_pro/services/payer_themes_service.rb b/lib/gocardless_pro/services/payer_themes_service.rb
new file mode 100644
index 0000000..290d845
--- /dev/null
+++ b/lib/gocardless_pro/services/payer_themes_service.rb
@@ -0,0 +1,49 @@
+require_relative './base_service'
+
+# encoding: utf-8
+#
+# This client is automatically generated from a template and JSON schema definition.
+# See https://github.com/gocardless/gocardless-pro-ruby#contributing before editing.
+#
+
+module GoCardlessPro
+  module Services
+    # Service for making requests to the PayerTheme endpoints
+    class PayerThemesService < BaseService
+      # Creates a new payer theme associated with a creditor. If a creditor already
+      # has payer themes, this will update the existing payer theme linked to the
+      # creditor.
+      # Example URL: /branding/payer_themes
+      # @param options [Hash] parameters as a hash, under a params key.
+      def create_for_creditor(options = {})
+        path = '/branding/payer_themes'
+
+        params = options.delete(:params) || {}
+        options[:params] = {}
+        options[:params][envelope_key] = params
+
+        options[:retry_failures] = true
+
+        response = make_request(:post, path, options)
+
+        return if response.body.nil?
+
+        Resources::PayerTheme.new(unenvelope_body(response.body), response)
+      end
+
+      private
+
+      # Unenvelope the response of the body using the service's `envelope_key`
+      #
+      # @param body [Hash]
+      def unenvelope_body(body)
+        body[envelope_key] || body['data']
+      end
+
+      # return the key which API responses will envelope data under
+      def envelope_key
+        'payer_themes'
+      end
+    end
+  end
+end
diff --git a/lib/gocardless_pro/version.rb b/lib/gocardless_pro/version.rb
index aa1d9fb..01b5abe 100644
--- a/lib/gocardless_pro/version.rb
+++ b/lib/gocardless_pro/version.rb
@@ -3,5 +3,5 @@ module GoCardlessPro
 
 module GoCardlessPro
   # Current version of the GC gem
-  VERSION = '2.55.0'
+  VERSION = '2.56.0'
 end
diff --git a/spec/resources/logo_spec.rb b/spec/resources/logo_spec.rb
new file mode 100644
index 0000000..4e20624
--- /dev/null
+++ b/spec/resources/logo_spec.rb
@@ -0,0 +1,113 @@
+require 'spec_helper'
+
+describe GoCardlessPro::Resources::Logo do
+  let(:client) do
+    GoCardlessPro::Client.new(
+      access_token: 'SECRET_TOKEN'
+    )
+  end
+
+  let(:response_headers) { { 'Content-Type' => 'application/json' } }
+
+  describe '#create' do
+    subject(:post_create_response) { client.logos.create_for_creditor(params: new_resource) }
+    context 'with a valid request' do
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/logos}).
+          with(
+            body: {
+              'logos' => {
+
+                'id' => 'id-input',
+              },
+            }
+          ).
+          to_return(
+            body: {
+              'logos' =>
+
+                {
+
+                  'id' => 'id-input',
+                },
+
+            }.to_json,
+            headers: response_headers
+          )
+      end
+
+      it 'creates and returns the resource' do
+        expect(post_create_response).to be_a(GoCardlessPro::Resources::Logo)
+      end
+    end
+
+    context 'with a request that returns a validation error' do
+      let(:new_resource) { {} }
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/logos}).to_return(
+          body: {
+            error: {
+              type: 'validation_failed',
+              code: 422,
+              errors: [
+                { message: 'test error message', field: 'test_field' },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 422
+        )
+      end
+
+      it 'throws the correct error' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::ValidationError)
+      end
+    end
+
+    context 'with a request that returns an idempotent creation conflict error' do
+      let(:id) { 'ID123' }
+
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      let!(:post_stub) do
+        stub_request(:post, %r{.*api.gocardless.com/branding/logos}).to_return(
+          body: {
+            error: {
+              type: 'invalid_state',
+              code: 409,
+              errors: [
+                {
+                  message: 'A resource has already been created with this idempotency key',
+                  reason: 'idempotent_creation_conflict',
+                  links: {
+                    conflicting_resource_id: id,
+                  },
+                },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 409
+        )
+      end
+
+      it 'raises an InvalidStateError' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::InvalidStateError)
+        expect(post_stub).to have_been_requested
+      end
+    end
+  end
+end
diff --git a/spec/resources/payer_theme_spec.rb b/spec/resources/payer_theme_spec.rb
new file mode 100644
index 0000000..f5d0381
--- /dev/null
+++ b/spec/resources/payer_theme_spec.rb
@@ -0,0 +1,113 @@
+require 'spec_helper'
+
+describe GoCardlessPro::Resources::PayerTheme do
+  let(:client) do
+    GoCardlessPro::Client.new(
+      access_token: 'SECRET_TOKEN'
+    )
+  end
+
+  let(:response_headers) { { 'Content-Type' => 'application/json' } }
+
+  describe '#create' do
+    subject(:post_create_response) { client.payer_themes.create_for_creditor(params: new_resource) }
+    context 'with a valid request' do
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).
+          with(
+            body: {
+              'payer_themes' => {
+
+                'id' => 'id-input',
+              },
+            }
+          ).
+          to_return(
+            body: {
+              'payer_themes' =>
+
+                {
+
+                  'id' => 'id-input',
+                },
+
+            }.to_json,
+            headers: response_headers
+          )
+      end
+
+      it 'creates and returns the resource' do
+        expect(post_create_response).to be_a(GoCardlessPro::Resources::PayerTheme)
+      end
+    end
+
+    context 'with a request that returns a validation error' do
+      let(:new_resource) { {} }
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).to_return(
+          body: {
+            error: {
+              type: 'validation_failed',
+              code: 422,
+              errors: [
+                { message: 'test error message', field: 'test_field' },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 422
+        )
+      end
+
+      it 'throws the correct error' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::ValidationError)
+      end
+    end
+
+    context 'with a request that returns an idempotent creation conflict error' do
+      let(:id) { 'ID123' }
+
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      let!(:post_stub) do
+        stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).to_return(
+          body: {
+            error: {
+              type: 'invalid_state',
+              code: 409,
+              errors: [
+                {
+                  message: 'A resource has already been created with this idempotency key',
+                  reason: 'idempotent_creation_conflict',
+                  links: {
+                    conflicting_resource_id: id,
+                  },
+                },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 409
+        )
+      end
+
+      it 'raises an InvalidStateError' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::InvalidStateError)
+        expect(post_stub).to have_been_requested
+      end
+    end
+  end
+end
diff --git a/spec/services/logos_service_spec.rb b/spec/services/logos_service_spec.rb
new file mode 100644
index 0000000..e8dcded
--- /dev/null
+++ b/spec/services/logos_service_spec.rb
@@ -0,0 +1,136 @@
+require 'spec_helper'
+
+describe GoCardlessPro::Services::LogosService do
+  let(:client) do
+    GoCardlessPro::Client.new(
+      access_token: 'SECRET_TOKEN'
+    )
+  end
+
+  let(:response_headers) { { 'Content-Type' => 'application/json' } }
+
+  describe '#create' do
+    subject(:post_create_response) { client.logos.create_for_creditor(params: new_resource) }
+    context 'with a valid request' do
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/logos}).
+          with(
+            body: {
+              'logos' => {
+
+                'id' => 'id-input',
+              },
+            }
+          ).
+          to_return(
+            body: {
+              'logos' =>
+
+                {
+
+                  'id' => 'id-input',
+                },
+
+            }.to_json,
+            headers: response_headers
+          )
+      end
+
+      it 'creates and returns the resource' do
+        expect(post_create_response).to be_a(GoCardlessPro::Resources::Logo)
+      end
+
+      describe 'retry behaviour' do
+        before { allow_any_instance_of(GoCardlessPro::Request).to receive(:sleep) }
+
+        it 'retries timeouts' do
+          stub = stub_request(:post, %r{.*api.gocardless.com/branding/logos}).
+                 to_timeout.then.to_return({ status: 200, headers: response_headers })
+
+          post_create_response
+          expect(stub).to have_been_requested.twice
+        end
+
+        it 'retries 5XX errors' do
+          stub = stub_request(:post, %r{.*api.gocardless.com/branding/logos}).
+                 to_return({ status: 502,
+                             headers: { 'Content-Type' => 'text/html' },
+                             body: '<html><body>Response from Cloudflare</body></html>' }).
+                 then.to_return({ status: 200, headers: response_headers })
+
+          post_create_response
+          expect(stub).to have_been_requested.twice
+        end
+      end
+    end
+
+    context 'with a request that returns a validation error' do
+      let(:new_resource) { {} }
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/logos}).to_return(
+          body: {
+            error: {
+              type: 'validation_failed',
+              code: 422,
+              errors: [
+                { message: 'test error message', field: 'test_field' },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 422
+        )
+      end
+
+      it 'throws the correct error' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::ValidationError)
+      end
+    end
+
+    context 'with a request that returns an idempotent creation conflict error' do
+      let(:id) { 'ID123' }
+
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      let!(:post_stub) do
+        stub_request(:post, %r{.*api.gocardless.com/branding/logos}).to_return(
+          body: {
+            error: {
+              type: 'invalid_state',
+              code: 409,
+              errors: [
+                {
+                  message: 'A resource has already been created with this idempotency key',
+                  reason: 'idempotent_creation_conflict',
+                  links: {
+                    conflicting_resource_id: id,
+                  },
+                },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 409
+        )
+      end
+
+      it 'raises an InvalidStateError' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::InvalidStateError)
+        expect(post_stub).to have_been_requested
+      end
+    end
+  end
+end
diff --git a/spec/services/payer_themes_service_spec.rb b/spec/services/payer_themes_service_spec.rb
new file mode 100644
index 0000000..905a8f2
--- /dev/null
+++ b/spec/services/payer_themes_service_spec.rb
@@ -0,0 +1,136 @@
+require 'spec_helper'
+
+describe GoCardlessPro::Services::PayerThemesService do
+  let(:client) do
+    GoCardlessPro::Client.new(
+      access_token: 'SECRET_TOKEN'
+    )
+  end
+
+  let(:response_headers) { { 'Content-Type' => 'application/json' } }
+
+  describe '#create' do
+    subject(:post_create_response) { client.payer_themes.create_for_creditor(params: new_resource) }
+    context 'with a valid request' do
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).
+          with(
+            body: {
+              'payer_themes' => {
+
+                'id' => 'id-input',
+              },
+            }
+          ).
+          to_return(
+            body: {
+              'payer_themes' =>
+
+                {
+
+                  'id' => 'id-input',
+                },
+
+            }.to_json,
+            headers: response_headers
+          )
+      end
+
+      it 'creates and returns the resource' do
+        expect(post_create_response).to be_a(GoCardlessPro::Resources::PayerTheme)
+      end
+
+      describe 'retry behaviour' do
+        before { allow_any_instance_of(GoCardlessPro::Request).to receive(:sleep) }
+
+        it 'retries timeouts' do
+          stub = stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).
+                 to_timeout.then.to_return({ status: 200, headers: response_headers })
+
+          post_create_response
+          expect(stub).to have_been_requested.twice
+        end
+
+        it 'retries 5XX errors' do
+          stub = stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).
+                 to_return({ status: 502,
+                             headers: { 'Content-Type' => 'text/html' },
+                             body: '<html><body>Response from Cloudflare</body></html>' }).
+                 then.to_return({ status: 200, headers: response_headers })
+
+          post_create_response
+          expect(stub).to have_been_requested.twice
+        end
+      end
+    end
+
+    context 'with a request that returns a validation error' do
+      let(:new_resource) { {} }
+
+      before do
+        stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).to_return(
+          body: {
+            error: {
+              type: 'validation_failed',
+              code: 422,
+              errors: [
+                { message: 'test error message', field: 'test_field' },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 422
+        )
+      end
+
+      it 'throws the correct error' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::ValidationError)
+      end
+    end
+
+    context 'with a request that returns an idempotent creation conflict error' do
+      let(:id) { 'ID123' }
+
+      let(:new_resource) do
+        {
+
+          'id' => 'id-input',
+        }
+      end
+
+      let!(:post_stub) do
+        stub_request(:post, %r{.*api.gocardless.com/branding/payer_themes}).to_return(
+          body: {
+            error: {
+              type: 'invalid_state',
+              code: 409,
+              errors: [
+                {
+                  message: 'A resource has already been created with this idempotency key',
+                  reason: 'idempotent_creation_conflict',
+                  links: {
+                    conflicting_resource_id: id,
+                  },
+                },
+              ],
+            },
+          }.to_json,
+          headers: response_headers,
+          status: 409
+        )
+      end
+
+      it 'raises an InvalidStateError' do
+        expect { post_create_response }.to raise_error(GoCardlessPro::InvalidStateError)
+        expect(post_stub).to have_been_requested
+      end
+    end
+  end
+end