diff --git a/lib/shared/messages/add-members-message-spec.js b/lib/shared/messages/add-members-message-spec.js
--- a/lib/shared/messages/add-members-message-spec.js
+++ b/lib/shared/messages/add-members-message-spec.js
@@ -233,14 +233,14 @@
     messageInfo: AddMembersMessageInfo,
     params: ShowInMessagePreviewParams,
   ) =>
-    threadSpecs[params.threadInfo.type].protocol
+    threadSpecs[params.threadInfo.type].protocol.presentationDetails
       .membershipChangesShownInThreadPreview,
 
   getLastUpdatedTime: (
     rawMessageInfo: RawAddMembersMessageInfo,
     params: ShowInMessagePreviewParams,
   ) =>
-    threadSpecs[params.threadInfo.type].protocol
+    threadSpecs[params.threadInfo.type].protocol.presentationDetails
       .membershipChangesShownInThreadPreview
       ? rawMessageInfo.time
       : null,
diff --git a/lib/shared/messages/join-thread-message-spec.js b/lib/shared/messages/join-thread-message-spec.js
--- a/lib/shared/messages/join-thread-message-spec.js
+++ b/lib/shared/messages/join-thread-message-spec.js
@@ -179,14 +179,14 @@
     messageInfo: JoinThreadMessageInfo,
     params: ShowInMessagePreviewParams,
   ) =>
-    threadSpecs[params.threadInfo.type].protocol
+    threadSpecs[params.threadInfo.type].protocol.presentationDetails
       .membershipChangesShownInThreadPreview,
 
   getLastUpdatedTime: (
     rawMessageInfo: RawJoinThreadMessageInfo,
     params: ShowInMessagePreviewParams,
   ) =>
-    threadSpecs[params.threadInfo.type].protocol
+    threadSpecs[params.threadInfo.type].protocol.presentationDetails
       .membershipChangesShownInThreadPreview
       ? rawMessageInfo.time
       : null,
diff --git a/lib/shared/messages/leave-thread-message-spec.js b/lib/shared/messages/leave-thread-message-spec.js
--- a/lib/shared/messages/leave-thread-message-spec.js
+++ b/lib/shared/messages/leave-thread-message-spec.js
@@ -179,14 +179,14 @@
     messageInfo: LeaveThreadMessageInfo,
     params: ShowInMessagePreviewParams,
   ) =>
-    threadSpecs[params.threadInfo.type].protocol
+    threadSpecs[params.threadInfo.type].protocol.presentationDetails
       .membershipChangesShownInThreadPreview,
 
   getLastUpdatedTime: (
     rawMessageInfo: RawLeaveThreadMessageInfo,
     params: ShowInMessagePreviewParams,
   ) =>
-    threadSpecs[params.threadInfo.type].protocol
+    threadSpecs[params.threadInfo.type].protocol.presentationDetails
       .membershipChangesShownInThreadPreview
       ? rawMessageInfo.time
       : null,
diff --git a/lib/shared/messages/remove-members-message-spec.js b/lib/shared/messages/remove-members-message-spec.js
--- a/lib/shared/messages/remove-members-message-spec.js
+++ b/lib/shared/messages/remove-members-message-spec.js
@@ -239,14 +239,14 @@
       messageInfo: RemoveMembersMessageInfo,
       params: ShowInMessagePreviewParams,
     ) =>
-      threadSpecs[params.threadInfo.type].protocol
+      threadSpecs[params.threadInfo.type].protocol.presentationDetails
         .membershipChangesShownInThreadPreview,
 
     getLastUpdatedTime: (
       rawMessageInfo: RawRemoveMembersMessageInfo,
       params: ShowInMessagePreviewParams,
     ) =>
-      threadSpecs[params.threadInfo.type].protocol
+      threadSpecs[params.threadInfo.type].protocol.presentationDetails
         .membershipChangesShownInThreadPreview
         ? rawMessageInfo.time
         : null,
diff --git a/lib/shared/search-utils.js b/lib/shared/search-utils.js
--- a/lib/shared/search-utils.js
+++ b/lib/shared/search-utils.js
@@ -9,7 +9,7 @@
   userIsMember,
   userHasDeviceList,
 } from './thread-utils.js';
-import { threadTypeIsSidebar } from './threads/thread-specs.js';
+import { threadSpecs, threadTypeIsSidebar } from './threads/thread-specs.js';
 import { searchMessagesActionTypes } from '../actions/message-actions.js';
 import {
   searchUsers,
@@ -37,10 +37,7 @@
 import { userRelationshipStatus } from '../types/relationship-types.js';
 import { threadPermissions } from '../types/thread-permission-types.js';
 import type { ThreadRolePermissionsBlob } from '../types/thread-permission-types.js';
-import {
-  type ThreadType,
-  threadTypeIsThick,
-} from '../types/thread-types-enum.js';
+import { type ThreadType } from '../types/thread-types-enum.js';
 import type {
   AccountUserInfo,
   GlobalAccountUserInfo,
@@ -161,7 +158,8 @@
       }
       return !!(
         threadType &&
-        threadTypeIsThick(threadType) &&
+        threadSpecs[threadType].protocol.presentationDetails
+          .usersWithoutDeviceListExcludedFromSearchResult &&
         !userHasDeviceList(userID, auxUserInfos)
       );
     },
diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -14,6 +14,7 @@
 import { relationshipBlockedInEitherDirection } from './relationship-utils.js';
 import type { SidebarItem } from './sidebar-item-utils.js';
 import {
+  threadSpecs,
   threadTypeIsCommunityRoot,
   threadTypeIsPersonal,
   threadTypeIsPrivate,
@@ -1245,28 +1246,7 @@
 }
 
 function threadLabel(threadType: ThreadType): string {
-  if (
-    threadType === threadTypes.COMMUNITY_OPEN_SUBTHREAD ||
-    threadType === threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD
-  ) {
-    return 'Open';
-  } else if (threadType === threadTypes.GENESIS_PERSONAL) {
-    return 'Personal';
-  } else if (threadTypeIsSidebar(threadType)) {
-    return 'Thread';
-  } else if (threadType === threadTypes.GENESIS_PRIVATE) {
-    return 'Private';
-  } else if (
-    threadType === threadTypes.COMMUNITY_ROOT ||
-    threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
-    threadType === threadTypes.GENESIS
-  ) {
-    return 'Community';
-  } else if (threadTypeIsThick(threadType)) {
-    return 'Local DM';
-  } else {
-    return 'Secret';
-  }
+  return threadSpecs[threadType].threadLabel;
 }
 
 type ExistingThreadInfoFinderParams = {
diff --git a/lib/shared/threads/community-announcement-root-spec.js b/lib/shared/threads/community-announcement-root-spec.js
--- a/lib/shared/threads/community-announcement-root-spec.js
+++ b/lib/shared/threads/community-announcement-root-spec.js
@@ -6,6 +6,7 @@
 const communityAnnouncementRootSpec: ThreadSpec = Object.freeze({
   traits: new Set(['community', 'announcement']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Community',
 });
 
 export { communityAnnouncementRootSpec };
diff --git a/lib/shared/threads/community-open-announcement-subthread-spec.js b/lib/shared/threads/community-open-announcement-subthread-spec.js
--- a/lib/shared/threads/community-open-announcement-subthread-spec.js
+++ b/lib/shared/threads/community-open-announcement-subthread-spec.js
@@ -6,6 +6,7 @@
 const communityOpenAnnouncementSubthreadSpec: ThreadSpec = Object.freeze({
   traits: new Set(['communitySubthread', 'announcement']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Open',
 });
 
 export { communityOpenAnnouncementSubthreadSpec };
diff --git a/lib/shared/threads/community-open-subthread-spec.js b/lib/shared/threads/community-open-subthread-spec.js
--- a/lib/shared/threads/community-open-subthread-spec.js
+++ b/lib/shared/threads/community-open-subthread-spec.js
@@ -6,6 +6,7 @@
 const communityOpenSubthreadSpec: ThreadSpec = Object.freeze({
   traits: new Set(['communitySubthread']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Open',
 });
 
 export { communityOpenSubthreadSpec };
diff --git a/lib/shared/threads/community-root-spec.js b/lib/shared/threads/community-root-spec.js
--- a/lib/shared/threads/community-root-spec.js
+++ b/lib/shared/threads/community-root-spec.js
@@ -6,6 +6,7 @@
 const communityRootSpec: ThreadSpec = Object.freeze({
   traits: new Set(['community']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Community',
 });
 
 export { communityRootSpec };
diff --git a/lib/shared/threads/community-secret-announcement-subthread-spec.js b/lib/shared/threads/community-secret-announcement-subthread-spec.js
--- a/lib/shared/threads/community-secret-announcement-subthread-spec.js
+++ b/lib/shared/threads/community-secret-announcement-subthread-spec.js
@@ -6,6 +6,7 @@
 const communitySecretAnnouncementSubthreadSpec: ThreadSpec = Object.freeze({
   traits: new Set(['communitySubthread', 'announcement']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Secret',
 });
 
 export { communitySecretAnnouncementSubthreadSpec };
diff --git a/lib/shared/threads/community-secret-subthread-spec.js b/lib/shared/threads/community-secret-subthread-spec.js
--- a/lib/shared/threads/community-secret-subthread-spec.js
+++ b/lib/shared/threads/community-secret-subthread-spec.js
@@ -6,6 +6,7 @@
 const communitySecretSubthreadSpec: ThreadSpec = Object.freeze({
   traits: new Set(['communitySubthread']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Secret',
 });
 
 export { communitySecretSubthreadSpec };
diff --git a/lib/shared/threads/genesis-personal-spec.js b/lib/shared/threads/genesis-personal-spec.js
--- a/lib/shared/threads/genesis-personal-spec.js
+++ b/lib/shared/threads/genesis-personal-spec.js
@@ -6,6 +6,7 @@
 const genesisPersonalSpec: ThreadSpec = Object.freeze({
   traits: new Set(['personal']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Personal',
 });
 
 export { genesisPersonalSpec };
diff --git a/lib/shared/threads/genesis-private-spec.js b/lib/shared/threads/genesis-private-spec.js
--- a/lib/shared/threads/genesis-private-spec.js
+++ b/lib/shared/threads/genesis-private-spec.js
@@ -6,6 +6,7 @@
 const genesisPrivateSpec: ThreadSpec = Object.freeze({
   traits: new Set(['private']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Private',
 });
 
 export { genesisPrivateSpec };
diff --git a/lib/shared/threads/genesis-spec.js b/lib/shared/threads/genesis-spec.js
--- a/lib/shared/threads/genesis-spec.js
+++ b/lib/shared/threads/genesis-spec.js
@@ -6,6 +6,7 @@
 const genesisSpec: ThreadSpec = Object.freeze({
   traits: new Set(['community', 'announcement']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Community',
 });
 
 export { genesisSpec };
diff --git a/lib/shared/threads/local-spec.js b/lib/shared/threads/local-spec.js
--- a/lib/shared/threads/local-spec.js
+++ b/lib/shared/threads/local-spec.js
@@ -6,6 +6,7 @@
 const localSpec: ThreadSpec = Object.freeze({
   traits: new Set(),
   protocol: dmThreadProtocol,
+  threadLabel: 'Local DM',
 });
 
 export { localSpec };
diff --git a/lib/shared/threads/personal-spec.js b/lib/shared/threads/personal-spec.js
--- a/lib/shared/threads/personal-spec.js
+++ b/lib/shared/threads/personal-spec.js
@@ -6,6 +6,7 @@
 const personalSpec: ThreadSpec = Object.freeze({
   traits: new Set(['personal']),
   protocol: dmThreadProtocol,
+  threadLabel: 'Local DM',
 });
 
 export { personalSpec };
diff --git a/lib/shared/threads/private-spec.js b/lib/shared/threads/private-spec.js
--- a/lib/shared/threads/private-spec.js
+++ b/lib/shared/threads/private-spec.js
@@ -6,6 +6,7 @@
 const privateSpec: ThreadSpec = Object.freeze({
   traits: new Set(['private']),
   protocol: dmThreadProtocol,
+  threadLabel: 'Local DM',
 });
 
 export { privateSpec };
diff --git a/lib/shared/threads/protocols/dm-thread-protocol.js b/lib/shared/threads/protocols/dm-thread-protocol.js
--- a/lib/shared/threads/protocols/dm-thread-protocol.js
+++ b/lib/shared/threads/protocols/dm-thread-protocol.js
@@ -430,9 +430,15 @@
     };
   },
 
-  membershipChangesShownInThreadPreview: true,
-
   allowsDeletingSidebarSource: false,
+
+  presentationDetails: {
+    membershipChangesShownInThreadPreview: true,
+    usersWithoutDeviceListExcludedFromSearchResult: true,
+    supportsMediaGallery: false,
+    chatThreadListIcon: 'lock',
+    breadCrumbs: () => 'Local DM',
+  },
 });
 
 export { dmThreadProtocol };
diff --git a/lib/shared/threads/protocols/keyserver-thread-protocol.js b/lib/shared/threads/protocols/keyserver-thread-protocol.js
--- a/lib/shared/threads/protocols/keyserver-thread-protocol.js
+++ b/lib/shared/threads/protocols/keyserver-thread-protocol.js
@@ -1,6 +1,7 @@
 // @flow
 
 import invariant from 'invariant';
+import * as React from 'react';
 
 import type { ProcessHolders } from '../../../actions/holder-actions.js';
 import { sendEditMessageActionTypes } from '../../../actions/message-actions.js';
@@ -213,9 +214,15 @@
     return utils.keyserverSetThreadUnreadStatus(rest);
   },
 
-  membershipChangesShownInThreadPreview: false,
-
   allowsDeletingSidebarSource: true,
+
+  presentationDetails: {
+    membershipChangesShownInThreadPreview: false,
+    usersWithoutDeviceListExcludedFromSearchResult: false,
+    supportsMediaGallery: true,
+    chatThreadListIcon: 'server',
+    breadCrumbs: (ancestorPath: React.Node) => ancestorPath,
+  },
 });
 
 function mediaIDIsKeyserverID(mediaID: string): boolean {
diff --git a/lib/shared/threads/sidebar-spec.js b/lib/shared/threads/sidebar-spec.js
--- a/lib/shared/threads/sidebar-spec.js
+++ b/lib/shared/threads/sidebar-spec.js
@@ -6,6 +6,7 @@
 const sidebarSpec: ThreadSpec = Object.freeze({
   traits: new Set(['sidebar']),
   protocol: keyserverThreadProtocol,
+  threadLabel: 'Thread',
 });
 
 export { sidebarSpec };
diff --git a/lib/shared/threads/thick-sidebar-spec.js b/lib/shared/threads/thick-sidebar-spec.js
--- a/lib/shared/threads/thick-sidebar-spec.js
+++ b/lib/shared/threads/thick-sidebar-spec.js
@@ -6,6 +6,7 @@
 const thickSidebarSpec: ThreadSpec = Object.freeze({
   traits: new Set(['sidebar']),
   protocol: dmThreadProtocol,
+  threadLabel: 'Thread',
 });
 
 export { thickSidebarSpec };
diff --git a/lib/shared/threads/thread-spec.js b/lib/shared/threads/thread-spec.js
--- a/lib/shared/threads/thread-spec.js
+++ b/lib/shared/threads/thread-spec.js
@@ -1,5 +1,7 @@
 // @flow
 
+import * as React from 'react';
+
 import type { UseSetThreadUnreadStatusInput } from '../../actions/activity-actions.js';
 import type {
   UseCreateEntryInput,
@@ -184,11 +186,18 @@
     input: ProtocolSetThreadUnreadStatusInput,
     utils: SetThreadUnreadStatusUtils,
   ) => Promise<SetThreadUnreadStatusPayload>,
-  +membershipChangesShownInThreadPreview: boolean,
   +allowsDeletingSidebarSource: boolean,
+  +presentationDetails: {
+    +membershipChangesShownInThreadPreview: boolean,
+    +usersWithoutDeviceListExcludedFromSearchResult: boolean,
+    +supportsMediaGallery: boolean,
+    +chatThreadListIcon: string,
+    +breadCrumbs: (ancestorPath: React.Node) => React.Node,
+  },
 };
 
 export type ThreadSpec = {
   +traits: $ReadOnlySet<ThreadTrait>,
   +protocol: ThreadProtocol,
+  +threadLabel: string,
 };
diff --git a/native/chat/chat-thread-list-item.react.js b/native/chat/chat-thread-list-item.react.js
--- a/native/chat/chat-thread-list-item.react.js
+++ b/native/chat/chat-thread-list-item.react.js
@@ -5,8 +5,8 @@
 import { Text, View } from 'react-native';
 
 import type { ChatThreadItem } from 'lib/selectors/chat-selectors.js';
+import { threadSpecs } from 'lib/shared/threads/thread-specs.js';
 import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
-import { threadTypeIsThick } from 'lib/types/thread-types-enum.js';
 import type { UserInfo } from 'lib/types/user-types.js';
 import { shortAbsoluteDate } from 'lib/utils/date-utils.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
@@ -132,12 +132,12 @@
     [data.threadInfo, styles.avatarContainer],
   );
 
-  const isThick = threadTypeIsThick(data.threadInfo.type);
   const iconStyle = data.threadInfo.currentUser.unread
     ? styles.iconUnread
     : styles.iconRead;
-
-  const iconName = isThick ? 'lock' : 'server';
+  const iconName =
+    threadSpecs[data.threadInfo.type].protocol.presentationDetails
+      .chatThreadListIcon;
 
   const threadDetails = React.useMemo(
     () => (
diff --git a/web/chat/chat-thread-list-item.react.js b/web/chat/chat-thread-list-item.react.js
--- a/web/chat/chat-thread-list-item.react.js
+++ b/web/chat/chat-thread-list-item.react.js
@@ -11,6 +11,7 @@
 import SWMansionIcon from 'lib/components/swmansion-icon.react.js';
 import type { ChatThreadItem } from 'lib/selectors/chat-selectors.js';
 import { useAncestorThreads } from 'lib/shared/ancestor-threads.js';
+import { threadSpecs } from 'lib/shared/threads/thread-specs.js';
 import { threadTypeIsThick } from 'lib/types/thread-types-enum.js';
 import { shortAbsoluteDate } from 'lib/utils/date-utils.js';
 import {
@@ -132,7 +133,10 @@
 
   const iconClass = unread ? css.iconUnread : css.iconRead;
   const icon = isThick ? lock : server;
-  const breadCrumbs = isThick ? 'Local DM' : ancestorPath;
+  const breadCrumbs =
+    threadSpecs[threadInfo.type].protocol.presentationDetails.breadCrumbs(
+      ancestorPath,
+    );
 
   return (
     <>
diff --git a/web/chat/thread-menu.react.js b/web/chat/thread-menu.react.js
--- a/web/chat/thread-menu.react.js
+++ b/web/chat/thread-menu.react.js
@@ -23,6 +23,7 @@
   viewerIsMember,
 } from 'lib/shared/thread-utils.js';
 import {
+  threadSpecs,
   threadTypeIsPersonal,
   threadTypeIsPrivate,
   threadTypeIsSidebar,
@@ -113,7 +114,10 @@
   );
 
   const threadMediaGalleryItem = React.useMemo(() => {
-    if (threadTypeIsThick(threadInfo.type)) {
+    if (
+      !threadSpecs[threadInfo.type].protocol.presentationDetails
+        .supportsMediaGallery
+    ) {
       return null;
     }
     return (