diff --git a/.github/workflows/validate-catalog.yml b/.github/workflows/validate-catalog.yml
index 83491cd..7e76c29 100644
--- a/.github/workflows/validate-catalog.yml
+++ b/.github/workflows/validate-catalog.yml
@@ -10,7 +10,7 @@ permissions:
 
 env:
   # Orca commit whose validator and legacy export the catalog is checked with. Bump it deliberately.
-  ORCA_REF: 7f05eec8e9af8da6736110b478ea4c41ed4ae69e
+  ORCA_REF: 6dbe0d079c0ca64d6c3b6648631d79b80a8a1ff0
 
 jobs:
   validate:
diff --git a/orca-catalog.json b/orca-catalog.json
index 166e5fc..fc0d5d2 100644
--- a/orca-catalog.json
+++ b/orca-catalog.json
@@ -19,9 +19,9 @@
       ],
       "releases": [
         {
-          "version": "2.1.0",
-          "commit": "d825d2f4bf9f2e1e4bb3399d570854a052760c5b",
-          "contentHash": "8b3d50f5d9abc27b8f96cc32eb242925fdf3ad90bf30e2552833399216314a00",
+          "version": "2.1.1",
+          "commit": "6d79256a1c72ec5eb24edaa2bb6e1ef3e81cea5a",
+          "contentHash": "c54280fedfdcbed71bef6310091b7e980f1bffa2b4b6a46125ea9aef3c442bda",
           "execution": "data",
           "minimumOrca": "1.4.244",
           "name": "Orca Midnight",
@@ -30,7 +30,32 @@
               "kind": "themes",
               "name": "Orca Midnight"
             }
-          ]
+          ],
+          "images": {
+            "cover": {
+              "path": "plugins/midnight-theme/images/cover.png",
+              "alt": "A crescent moon and stars over a deep blue-grey night sky, with the word Midnight and the theme palette",
+              "sha256": "8fec31d4f6f3a77a643f70391914e4d310add2571786b3110951c7d0efb3f671",
+              "width": 1600,
+              "height": 1000
+            },
+            "screenshots": [
+              {
+                "path": "plugins/midnight-theme/images/editor.png",
+                "alt": "Orca Midnight on the editor and terminal",
+                "sha256": "52e5f60d2101d3ad627145d71796d6df9cba0927d147a72bff7ae6c81c7da229",
+                "width": 1600,
+                "height": 1000
+              },
+              {
+                "path": "plugins/midnight-theme/images/settings.png",
+                "alt": "Orca Midnight selected in Appearance settings",
+                "sha256": "91fea1694d407b6ccfc6473f68ccfb0a895b7be23cd663c9a2ba8d1d4d934aa7",
+                "width": 1600,
+                "height": 1000
+              }
+            ]
+          }
         }
       ]
     },
@@ -60,7 +85,32 @@
               "kind": "themes",
               "name": "Nord"
             }
-          ]
+          ],
+          "images": {
+            "cover": {
+              "path": "plugins/nord-theme/images/cover.png",
+              "alt": "The Nord theme on an editor with a file tree and a TypeScript file",
+              "sha256": "39d136fcc481191250faedf379f9d5081fee354dfd40525d90b0ff3695a6b774",
+              "width": 1600,
+              "height": 1000
+            },
+            "screenshots": [
+              {
+                "path": "plugins/nord-theme/images/editor.png",
+                "alt": "Nord on the editor and terminal",
+                "sha256": "2daaec134aff9d8a30ca1e99664db3ebc61995438abceb9404b4fba79b529225",
+                "width": 1600,
+                "height": 1000
+              },
+              {
+                "path": "plugins/nord-theme/images/settings.png",
+                "alt": "Nord selected in Appearance settings",
+                "sha256": "314f09e5e0b69249efe8028c7186c00b4ee4d0ff52481fea18acfa722025ee63",
+                "width": 1600,
+                "height": 1000
+              }
+            ]
+          }
         }
       ]
     },
@@ -79,9 +129,9 @@
       ],
       "releases": [
         {
-          "version": "1.1.0",
-          "commit": "d825d2f4bf9f2e1e4bb3399d570854a052760c5b",
-          "contentHash": "e6af7e37ddd303b40e541fd708ede4d568c89ae53d37ef3f4723a29b736f2dd0",
+          "version": "1.1.1",
+          "commit": "6d79256a1c72ec5eb24edaa2bb6e1ef3e81cea5a",
+          "contentHash": "8c10ed3c1d8cd996bc53ca4b951323da147b42e3db2b091b04df6c5c3d6e038e",
           "execution": "data",
           "minimumOrca": "1.4.244",
           "name": "Orca OLED",
@@ -94,7 +144,32 @@
               "kind": "terminalThemes",
               "name": "Orca OLED"
             }
-          ]
+          ],
+          "images": {
+            "cover": {
+              "path": "plugins/oled-theme/images/cover.png",
+              "alt": "The word OLED in large white letters on true black, mirrored below in a fading reflection",
+              "sha256": "3eeb8dc5080745ab62803232f77d0ee79fc6ac1fc2c1bf97466910b2872c425f",
+              "width": 1600,
+              "height": 1000
+            },
+            "screenshots": [
+              {
+                "path": "plugins/oled-theme/images/workspace.png",
+                "alt": "Orca OLED on the editor, terminal and file tree, separated by thin dark grey lines",
+                "sha256": "e08f69ec7b91faed608669fc50cbf1ad0b95266e0a513ef8bf6a381176d44975",
+                "width": 1600,
+                "height": 1000
+              },
+              {
+                "path": "plugins/oled-theme/images/palette.png",
+                "alt": "The Orca OLED terminal colours on true black",
+                "sha256": "7674c8f717f4cfc5dcd369b3217b4d4d7a86927e97a5e8d835af2769619a0d26",
+                "width": 1600,
+                "height": 1000
+              }
+            ]
+          }
         }
       ]
     },
@@ -275,6 +350,57 @@
         "official"
       ],
       "releases": [
+        {
+          "version": "1.1.0",
+          "commit": "6d79256a1c72ec5eb24edaa2bb6e1ef3e81cea5a",
+          "contentHash": "1944e9c3712db4f279bfc9f6f4975c642e720a8e90c9ea38c302c8bc2c47256c",
+          "execution": "sandboxed-ui",
+          "minimumOrca": "1.4.244",
+          "name": "Excalidraw",
+          "contributes": [
+            {
+              "kind": "customEditors",
+              "name": "Excalidraw",
+              "detail": ".excalidraw, .excalidraw.json"
+            },
+            {
+              "kind": "newFiles",
+              "name": "New Excalidraw drawing",
+              "detail": ".excalidraw"
+            }
+          ],
+          "fileTypes": [
+            "excalidraw"
+          ],
+          "editorFileTypes": [
+            "excalidraw"
+          ],
+          "images": {
+            "cover": {
+              "path": "plugins/excalidraw/images/cover.png",
+              "alt": "A hand-drawn architecture sketch of a web app, API gateway, services and database open in the Excalidraw editor",
+              "sha256": "85cc3391dbb7569b271d8367da9232b9806e0ea0bf183112e34fb304260f327d",
+              "width": 1600,
+              "height": 1000
+            },
+            "screenshots": [
+              {
+                "path": "plugins/excalidraw/images/editing.png",
+                "alt": "A box in the sketch selected, with Excalidraw's stroke, fill and font options beside it",
+                "sha256": "cf14ff5105a08d396765816de52be2eba5a0076af20e72f667a29ffcc2521152",
+                "width": 1600,
+                "height": 1000
+              },
+              {
+                "path": "plugins/excalidraw/images/dark.png",
+                "alt": "The same sketch in Excalidraw's dark theme",
+                "sha256": "5db71c99c28336bf8b942de84a8327bf81d23b33d4eff7788c6efed0ebc463c9",
+                "width": 1600,
+                "height": 1000
+              }
+            ]
+          }
+        },
         {
           "version": "1.0.0",
           "commit": "d825d2f4bf9f2e1e4bb3399d570854a052760c5b",
@@ -338,6 +464,60 @@
         "official"
       ],
       "releases": [
+        {
+          "version": "1.1.0",
+          "commit": "6d79256a1c72ec5eb24edaa2bb6e1ef3e81cea5a",
+          "contentHash": "f2145e641e61ae587bb6944fd7371b3da0cb6bb91af53d4b221273ed119f8d13",
+          "execution": "sandboxed-ui",
+          "minimumOrca": "1.4.244",
+          "name": "Spreadsheet Viewer",
+          "contributes": [
+            {
+              "kind": "customEditors",
+              "name": "Spreadsheet",
+              "detail": ".xlsx, .xlsm, .xlsb, .xls, .ods"
+            }
+          ],
+          "fileTypes": [
+            "xlsx",
+            "xlsm",
+            "xlsb",
+            "xls",
+            "ods"
+          ],
+          "editorFileTypes": [
+            "xlsx",
+            "xlsm",
+            "xlsb",
+            "xls",
+            "ods"
+          ],
+          "images": {
+            "cover": {
+              "path": "plugins/spreadsheet/images/cover.png",
+              "alt": "A quarterly summary workbook in Spreadsheet Viewer: formatted currency, percentages and dates, a SUM formula above the grid, and sheet tabs",
+              "sha256": "bd07b5e0fa7c6646461713ad6fbfacf8b5dcd168f8414aaeaeb23b59f41552e8",
+              "width": 1600,
+              "height": 1000
+            },
+            "screenshots": [
+              {
+                "path": "plugins/spreadsheet/images/sheets.png",
+                "alt": "A 50,000-row data sheet with a block of cells selected and its count, sum and average in the status bar",
+                "sha256": "aaf8bc8a37bc461e9949bb2bd8429e62e882c3d1577981569323b75a05e1000d",
+                "width": 1600,
+                "height": 1000
+              },
+              {
+                "path": "plugins/spreadsheet/images/dark.png",
+                "alt": "The same summary workbook in Orca's dark theme, with merged title and notes cells and a #DIV/0! error in red",
+                "sha256": "f4040e07aa6a41d31b865fabb1fbae1d2623e9e8c9b1c6222f3a1018c76bc3b0",
+                "width": 1600,
+                "height": 1000
+              }
+            ]
+          }
+        },
         {
           "version": "1.0.0",
           "commit": "d825d2f4bf9f2e1e4bb3399d570854a052760c5b",
@@ -546,7 +726,32 @@
               "kind": "terminalThemes",
               "name": "Ember"
             }
-          ]
+          ],
+          "images": {
+            "cover": {
+              "path": "plugins/dusk-ember/images/cover.png",
+              "alt": "The violet Dusk theme and the warm, light Ember theme side by side on a Gleam file",
+              "sha256": "b2614cedfec38ec336874f49756845ab4a3266feeb13c598d7dcd6903a556ca6",
+              "width": 1600,
+              "height": 1000
+            },
+            "screenshots": [
+              {
+                "path": "plugins/dusk-ember/images/dusk.png",
+                "alt": "The Dusk theme on the editor and file tree, with the Dusk terminal colors below",
+                "sha256": "34988d2389baca80cfa77fd79f1df673315544a03e4d0d224107d60da679e0dc",
+                "width": 1600,
+                "height": 1000
+              },
+              {
+                "path": "plugins/dusk-ember/images/ember.png",
+                "alt": "The Ember theme on the same file, with the Ember terminal colors below",
+                "sha256": "de8c8a2a7f411ab3c8622632b1a491b4af5e4f252091b3597f7d2240b2814fa7",
+                "width": 1600,
+                "height": 1000
+              }
+            ]
+          }
         }
       ]
     }
diff --git a/plugins/excalidraw/images/tab-icon.png b/plugins/excalidraw/images/tab-icon.png
new file mode 100644
index 0000000..b6cad89
Binary files /dev/null and b/plugins/excalidraw/images/tab-icon.png differ
diff --git a/plugins/excalidraw/orca-plugin.json b/plugins/excalidraw/orca-plugin.json
index ba9ec4a..a20726f 100644
--- a/plugins/excalidraw/orca-plugin.json
+++ b/plugins/excalidraw/orca-plugin.json
@@ -3,7 +3,7 @@
   "id": "orca-excalidraw",
   "publisher": "stablyai",
   "name": "Excalidraw",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "execution": "sandboxed-ui",
   "description": "Draw and edit .excalidraw diagrams right in Orca's editor.",
   "license": "MIT",
@@ -16,10 +16,20 @@
       {
         "id": "excalidraw",
         "title": "Excalidraw",
+        "icon": "images/tab-icon.png",
         "extensions": [".excalidraw", ".excalidraw.json"],
         "entry": "editor/index.html",
         "priority": "default"
       }
+    ],
+    "newFiles": [
+      {
+        "id": "drawing",
+        "title": "New Excalidraw drawing",
+        "extension": ".excalidraw",
+        "template": "templates/empty.excalidraw",
+        "icon": "images/tab-icon.png"
+      }
     ]
   },
   "capabilities": [],
diff --git a/plugins/excalidraw/templates/empty.excalidraw b/plugins/excalidraw/templates/empty.excalidraw
new file mode 100644
index 0000000..025f41d
--- /dev/null
+++ b/plugins/excalidraw/templates/empty.excalidraw
@@ -0,0 +1,11 @@
+{
+  "type": "excalidraw",
+  "version": 2,
+  "source": "https://excalidraw.com",
+  "elements": [],
+  "appState": {
+    "gridSize": null,
+    "viewBackgroundColor": "#ffffff"
+  },
+  "files": {}
+}
diff --git a/plugins/midnight-theme/images/cover.png b/plugins/midnight-theme/images/cover.png
index d528cc7..d7a9952 100644
Binary files a/plugins/midnight-theme/images/cover.png and b/plugins/midnight-theme/images/cover.png differ
diff --git a/plugins/midnight-theme/orca-plugin.json b/plugins/midnight-theme/orca-plugin.json
index 0e679a4..1e7534d 100644
--- a/plugins/midnight-theme/orca-plugin.json
+++ b/plugins/midnight-theme/orca-plugin.json
@@ -3,7 +3,7 @@
   "id": "orca-midnight-theme",
   "publisher": "stablyai",
   "name": "Orca Midnight",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "execution": "data",
   "description": "A quiet dark theme tuned for long coding sessions.",
   "license": "MIT",
@@ -23,7 +23,7 @@
   "capabilities": [],
   "cover": {
     "path": "images/cover.png",
-    "alt": "The Orca Midnight theme on an editor with a file tree and a TypeScript file"
+    "alt": "A crescent moon and stars over a deep blue-grey night sky, with the word Midnight and the theme palette"
   },
   "screenshots": [
     {
diff --git a/plugins/oled-theme/images/cover.png b/plugins/oled-theme/images/cover.png
index f2c6624..b33d258 100644
Binary files a/plugins/oled-theme/images/cover.png and b/plugins/oled-theme/images/cover.png differ
diff --git a/plugins/oled-theme/orca-plugin.json b/plugins/oled-theme/orca-plugin.json
index 71fab74..f6b341d 100644
--- a/plugins/oled-theme/orca-plugin.json
+++ b/plugins/oled-theme/orca-plugin.json
@@ -3,7 +3,7 @@
   "id": "orca-oled-theme",
   "publisher": "stablyai",
   "name": "Orca OLED",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "execution": "data",
   "description": "A true-black dark theme and terminal theme for OLED displays.",
   "license": "MIT",
@@ -30,7 +30,7 @@
   "capabilities": [],
   "cover": {
     "path": "images/cover.png",
-    "alt": "Orca OLED: a file tree, an editor and a terminal on a pure black background"
+    "alt": "The word OLED in large white letters on true black, mirrored below in a fading reflection"
   },
   "screenshots": [
     {
diff --git a/plugins/spreadsheet/images/tab-icon.png b/plugins/spreadsheet/images/tab-icon.png
new file mode 100644
index 0000000..b75aca9
Binary files /dev/null and b/plugins/spreadsheet/images/tab-icon.png differ
diff --git a/plugins/spreadsheet/orca-plugin.json b/plugins/spreadsheet/orca-plugin.json
index fb099af..75495b2 100644
--- a/plugins/spreadsheet/orca-plugin.json
+++ b/plugins/spreadsheet/orca-plugin.json
@@ -3,7 +3,7 @@
   "id": "orca-spreadsheet",
   "publisher": "stablyai",
   "name": "Spreadsheet Viewer",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "execution": "sandboxed-ui",
   "description": "View Excel and OpenDocument spreadsheets in Orca's editor: every sheet, formulas and formatted values, even for very large files.",
   "license": "MIT",
@@ -16,6 +16,7 @@
       {
         "id": "spreadsheet",
         "title": "Spreadsheet",
+        "icon": "images/tab-icon.png",
         "extensions": [".xlsx", ".xlsm", ".xlsb", ".xls", ".ods"],
         "entry": "editor/index.html",
         "priority": "default",
diff --git a/scripts/release-entry.mjs b/scripts/release-entry.mjs
index 6acbd9e..90a7b2b 100644
--- a/scripts/release-entry.mjs
+++ b/scripts/release-entry.mjs
@@ -95,7 +95,8 @@ for (const sourcePath of dirs) {
       )
     }
   } else if (write) {
-    releases.unshift(printed)
+    // Why carried: a validator that prints no images must not drop the covers the last release listed.
+    releases.unshift(newest?.images && !printed.images ? { ...printed, images: newest.images } : printed)
     console.log(`${entry.id}: added release ${printed.version}`)
   } else {
     errors.push(