diff --git a/plugins/bui-themer/knip-report.md b/plugins/bui-themer/knip-report.md
new file mode 100644
index 0000000000..2661c35327
--- /dev/null
+++ b/plugins/bui-themer/knip-report.md
@@ -0,0 +1,2 @@
+# Knip report
+
diff --git a/plugins/bui-themer/package.json b/plugins/bui-themer/package.json
index 165da9ca0f..8235d9a641 100644
--- a/plugins/bui-themer/package.json
+++ b/plugins/bui-themer/package.json
@@ -26,30 +26,22 @@
   },
   "dependencies": {
     "@backstage/core-compat-api": "workspace:^",
-    "@backstage/core-components": "workspace:^",
     "@backstage/core-plugin-api": "workspace:^",
     "@backstage/frontend-plugin-api": "workspace:^",
     "@backstage/theme": "workspace:^",
     "@backstage/ui": "workspace:^",
-    "@material-ui/core": "^4.9.13",
-    "@material-ui/icons": "^4.9.1",
-    "@material-ui/lab": "^4.0.0-alpha.61",
     "@mui/material": "^5.12.2",
-    "@mui/system": "^5.16.14",
-    "react-use": "^17.2.4"
+    "@mui/system": "^5.16.14"
   },
   "peerDependencies": {
     "react": "^16.13.1 || ^17.0.0 || ^18.0.0"
   },
   "devDependencies": {
     "@backstage/cli": "workspace:^",
-    "@backstage/core-app-api": "workspace:^",
     "@backstage/dev-utils": "workspace:^",
     "@backstage/test-utils": "workspace:^",
     "@testing-library/jest-dom": "^6.0.0",
     "@testing-library/react": "^14.0.0",
-    "@testing-library/user-event": "^14.0.0",
-    "msw": "^1.0.0",
     "react": "^16.13.1 || ^17.0.0 || ^18.0.0"
   },
   "files": [
diff --git a/yarn.lock b/yarn.lock
index 9dd2bd9e16..5161dfed56 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2435,13 +2435,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/runtime@npm:^7.28.3":
-  version: 7.28.4
-  resolution: "@babel/runtime@npm:7.28.4"
-  checksum: 10/6c9a70452322ea80b3c9b2a412bcf60771819213a67576c8cec41e88a95bb7bf01fc983754cda35dc19603eef52df22203ccbf7777b9d6316932f9fb77c25163
-  languageName: node
-  linkType: hard
-
 "@babel/template@npm:^7.27.2, @babel/template@npm:^7.3.3":
   version: 7.27.2
   resolution: "@babel/template@npm:7.27.2"
@@ -4335,26 +4328,18 @@ __metadata:
   resolution: "@backstage/plugin-bui-themer@workspace:plugins/bui-themer"
   dependencies:
     "@backstage/cli": "workspace:^"
-    "@backstage/core-app-api": "workspace:^"
     "@backstage/core-compat-api": "workspace:^"
-    "@backstage/core-components": "workspace:^"
     "@backstage/core-plugin-api": "workspace:^"
     "@backstage/dev-utils": "workspace:^"
     "@backstage/frontend-plugin-api": "workspace:^"
     "@backstage/test-utils": "workspace:^"
     "@backstage/theme": "workspace:^"
     "@backstage/ui": "workspace:^"
-    "@material-ui/core": "npm:^4.9.13"
-    "@material-ui/icons": "npm:^4.9.1"
-    "@material-ui/lab": "npm:^4.0.0-alpha.61"
-    "@mui/material": "npm:^7.3.2"
-    "@mui/system": "npm:^7.3.2"
+    "@mui/material": "npm:^5.12.2"
+    "@mui/system": "npm:^5.16.14"
     "@testing-library/jest-dom": "npm:^6.0.0"
     "@testing-library/react": "npm:^14.0.0"
-    "@testing-library/user-event": "npm:^14.0.0"
-    msw: "npm:^1.0.0"
     react: "npm:^16.13.1 || ^17.0.0 || ^18.0.0"
-    react-use: "npm:^17.2.4"
   peerDependencies:
     react: ^16.13.1 || ^17.0.0 || ^18.0.0
   languageName: unknown
@@ -8194,19 +8179,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@emotion/cache@npm:^11.14.0":
-  version: 11.14.0
-  resolution: "@emotion/cache@npm:11.14.0"
-  dependencies:
-    "@emotion/memoize": "npm:^0.9.0"
-    "@emotion/sheet": "npm:^1.4.0"
-    "@emotion/utils": "npm:^1.4.2"
-    "@emotion/weak-memoize": "npm:^0.4.0"
-    stylis: "npm:4.2.0"
-  checksum: 10/52336b28a27b07dde8fcdfd80851cbd1487672bbd4db1e24cca1440c95d8a6a968c57b0453c2b7c88d9b432b717f99554dbecc05b5cdef27933299827e69fd8e
-  languageName: node
-  linkType: hard
-
 "@emotion/hash@npm:^0.8.0":
   version: 0.8.0
   resolution: "@emotion/hash@npm:0.8.0"
@@ -11193,13 +11165,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@mui/core-downloads-tracker@npm:^7.3.2":
-  version: 7.3.2
-  resolution: "@mui/core-downloads-tracker@npm:7.3.2"
-  checksum: 10/01c0976e5fb6a8f0b59ebd58019af5452d7761e97daf0f2ef121bc3323508edf2fea1b13ea1a54b0098d6ee5eef70041c9722fe43291b237b989b6813a24b71e
-  languageName: node
-  linkType: hard
-
 "@mui/material@npm:^5.12.2":
   version: 5.16.14
   resolution: "@mui/material@npm:5.16.14"
@@ -11233,42 +11198,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@mui/material@npm:^7.3.2":
-  version: 7.3.2
-  resolution: "@mui/material@npm:7.3.2"
-  dependencies:
-    "@babel/runtime": "npm:^7.28.3"
-    "@mui/core-downloads-tracker": "npm:^7.3.2"
-    "@mui/system": "npm:^7.3.2"
-    "@mui/types": "npm:^7.4.6"
-    "@mui/utils": "npm:^7.3.2"
-    "@popperjs/core": "npm:^2.11.8"
-    "@types/react-transition-group": "npm:^4.4.12"
-    clsx: "npm:^2.1.1"
-    csstype: "npm:^3.1.3"
-    prop-types: "npm:^15.8.1"
-    react-is: "npm:^19.1.1"
-    react-transition-group: "npm:^4.4.5"
-  peerDependencies:
-    "@emotion/react": ^11.5.0
-    "@emotion/styled": ^11.3.0
-    "@mui/material-pigment-css": ^7.3.2
-    "@types/react": ^17.0.0 || ^18.0.0 || ^19.0.0
-    react: ^17.0.0 || ^18.0.0 || ^19.0.0
-    react-dom: ^17.0.0 || ^18.0.0 || ^19.0.0
-  peerDependenciesMeta:
-    "@emotion/react":
-      optional: true
-    "@emotion/styled":
-      optional: true
-    "@mui/material-pigment-css":
-      optional: true
-    "@types/react":
-      optional: true
-  checksum: 10/e9a5348060d6e6e6cb1ce0fe299a582fa9b37b56dff46b62f72d029d5078acefd56a258e559b29bb3d12e89d0a81fd4f1194ce07cc136bbf03fdb4878fd9b3c0
-  languageName: node
-  linkType: hard
-
 "@mui/private-theming@npm:^5.16.14":
   version: 5.16.14
   resolution: "@mui/private-theming@npm:5.16.14"
@@ -11286,23 +11215,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@mui/private-theming@npm:^7.3.2":
-  version: 7.3.2
-  resolution: "@mui/private-theming@npm:7.3.2"
-  dependencies:
-    "@babel/runtime": "npm:^7.28.3"
-    "@mui/utils": "npm:^7.3.2"
-    prop-types: "npm:^15.8.1"
-  peerDependencies:
-    "@types/react": ^17.0.0 || ^18.0.0 || ^19.0.0
-    react: ^17.0.0 || ^18.0.0 || ^19.0.0
-  peerDependenciesMeta:
-    "@types/react":
-      optional: true
-  checksum: 10/5b733fc9e09e5b056af3e448899c665c6d1560ec56f593811fc88b9c5499ad42d8365551b182473880de6141a206da4f1f9e5b2ebcea12461dc6d8954e2a3ed7
-  languageName: node
-  linkType: hard
-
 "@mui/styled-engine@npm:^5.16.14":
   version: 5.16.14
   resolution: "@mui/styled-engine@npm:5.16.14"
@@ -11324,29 +11236,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@mui/styled-engine@npm:^7.3.2":
-  version: 7.3.2
-  resolution: "@mui/styled-engine@npm:7.3.2"
-  dependencies:
-    "@babel/runtime": "npm:^7.28.3"
-    "@emotion/cache": "npm:^11.14.0"
-    "@emotion/serialize": "npm:^1.3.3"
-    "@emotion/sheet": "npm:^1.4.0"
-    csstype: "npm:^3.1.3"
-    prop-types: "npm:^15.8.1"
-  peerDependencies:
-    "@emotion/react": ^11.4.1
-    "@emotion/styled": ^11.3.0
-    react: ^17.0.0 || ^18.0.0 || ^19.0.0
-  peerDependenciesMeta:
-    "@emotion/react":
-      optional: true
-    "@emotion/styled":
-      optional: true
-  checksum: 10/f31a6080b950cc66edd19a5285d30e0557fc16ef07a5e9027d3479f18dda4a569a62976c0fa396a99b077c01000c4fced3c8ab3ea0f6bcd82d6db06b821503b2
-  languageName: node
-  linkType: hard
-
 "@mui/styles@npm:^5.14.18":
   version: 5.16.14
   resolution: "@mui/styles@npm:5.16.14"
@@ -11406,34 +11295,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@mui/system@npm:^7.3.2":
-  version: 7.3.2
-  resolution: "@mui/system@npm:7.3.2"
-  dependencies:
-    "@babel/runtime": "npm:^7.28.3"
-    "@mui/private-theming": "npm:^7.3.2"
-    "@mui/styled-engine": "npm:^7.3.2"
-    "@mui/types": "npm:^7.4.6"
-    "@mui/utils": "npm:^7.3.2"
-    clsx: "npm:^2.1.1"
-    csstype: "npm:^3.1.3"
-    prop-types: "npm:^15.8.1"
-  peerDependencies:
-    "@emotion/react": ^11.5.0
-    "@emotion/styled": ^11.3.0
-    "@types/react": ^17.0.0 || ^18.0.0 || ^19.0.0
-    react: ^17.0.0 || ^18.0.0 || ^19.0.0
-  peerDependenciesMeta:
-    "@emotion/react":
-      optional: true
-    "@emotion/styled":
-      optional: true
-    "@types/react":
-      optional: true
-  checksum: 10/1e157027a693877a246c36e5c98dd988172daedb3430f95843a508fa3f8a707c394fe216078a17868d5d25690ea2f4c5af007dffff639436c36d982fb16e920a
-  languageName: node
-  linkType: hard
-
 "@mui/types@npm:^7.2.15":
   version: 7.2.19
   resolution: "@mui/types@npm:7.2.19"
@@ -11446,20 +11307,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@mui/types@npm:^7.4.6":
-  version: 7.4.6
-  resolution: "@mui/types@npm:7.4.6"
-  dependencies:
-    "@babel/runtime": "npm:^7.28.3"
-  peerDependencies:
-    "@types/react": ^17.0.0 || ^18.0.0 || ^19.0.0
-  peerDependenciesMeta:
-    "@types/react":
-      optional: true
-  checksum: 10/6263ef077332b75e01c1b347339f100f8743d8135efdee4a6c167ce70c69ca29d9face54c53395cbc1c8a8f5453fe8ef3f4457842cf0c05318f6ef6cde44456e
-  languageName: node
-  linkType: hard
-
 "@mui/utils@npm:^5.14.15, @mui/utils@npm:^5.16.14":
   version: 5.16.14
   resolution: "@mui/utils@npm:5.16.14"
@@ -11480,26 +11327,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@mui/utils@npm:^7.3.2":
-  version: 7.3.2
-  resolution: "@mui/utils@npm:7.3.2"
-  dependencies:
-    "@babel/runtime": "npm:^7.28.3"
-    "@mui/types": "npm:^7.4.6"
-    "@types/prop-types": "npm:^15.7.15"
-    clsx: "npm:^2.1.1"
-    prop-types: "npm:^15.8.1"
-    react-is: "npm:^19.1.1"
-  peerDependencies:
-    "@types/react": ^17.0.0 || ^18.0.0 || ^19.0.0
-    react: ^17.0.0 || ^18.0.0 || ^19.0.0
-  peerDependenciesMeta:
-    "@types/react":
-      optional: true
-  checksum: 10/defcebcb8e49cdbdf271e49066d78046d2d25d4c8177176a6c5d3368fe85e6a280c7be71dbf356b434863d96d69236956afe6a4a47bc394de6aeecfa8bc24fda
-  languageName: node
-  linkType: hard
-
 "@n1ru4l/push-pull-async-iterable-iterator@npm:^3.1.0":
   version: 3.1.0
   resolution: "@n1ru4l/push-pull-async-iterable-iterator@npm:3.1.0"
@@ -20933,7 +20760,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/prop-types@npm:*, @types/prop-types@npm:^15.0.0, @types/prop-types@npm:^15.7.12, @types/prop-types@npm:^15.7.15, @types/prop-types@npm:^15.7.3":
+"@types/prop-types@npm:*, @types/prop-types@npm:^15.0.0, @types/prop-types@npm:^15.7.12, @types/prop-types@npm:^15.7.3":
   version: 15.7.15
   resolution: "@types/prop-types@npm:15.7.15"
   checksum: 10/31aa2f59b28f24da6fb4f1d70807dae2aedfce090ec63eaf9ea01727a9533ef6eaf017de5bff99fbccad7d1c9e644f52c6c2ba30869465dd22b1a7221c29f356
@@ -21047,15 +20874,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/react-transition-group@npm:^4.4.12":
-  version: 4.4.12
-  resolution: "@types/react-transition-group@npm:4.4.12"
-  peerDependencies:
-    "@types/react": "*"
-  checksum: 10/ea14bc84f529a3887f9954b753843820ac8a3c49fcdfec7840657ecc6a8800aad98afdbe4b973eb96c7252286bde38476fcf64b1c09527354a9a9366e516d9a2
-  languageName: node
-  linkType: hard
-
 "@types/react-virtualized-auto-sizer@npm:^1.0.1":
   version: 1.0.4
   resolution: "@types/react-virtualized-auto-sizer@npm:1.0.4"
@@ -42928,13 +42746,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-is@npm:^19.1.1":
-  version: 19.1.1
-  resolution: "react-is@npm:19.1.1"
-  checksum: 10/44e0937da1f0da1d5dbd4f01972870768ef207f8a49717f4491f5022454f34c956cb66be560aee5286387169853b0283a81e1f419b51dc62654c8710dc98065a
-  languageName: node
-  linkType: hard
-
 "react-json-view@npm:^1.21.3":
   version: 1.21.3
   resolution: "react-json-view@npm:1.21.3"