diff --git a/src/web/main/styles.css b/src/web/main/styles.css
index c555e6e..4cab22b 100644
--- a/src/web/main/styles.css
+++ b/src/web/main/styles.css
@@ -10,6 +10,7 @@
   --accent: #4c8dff;
   --accent-soft: #233b61;
   --star: #f5c451;
+  --danger: #f14c4c;
   font-family:
     Inter,
     ui-sans-serif,
@@ -85,8 +86,10 @@ input:focus-visible,
 
 .repo-tab.active,
 .term-tab.active,
+.hubs-menu,
 .repo-tab.active:hover,
-.term-tab.active:hover {
+.term-tab.active:hover,
+.hubs-menu:hover:not(:disabled) {
   background: var(--accent);
   border-color: var(--accent);
   color: #fff;
@@ -512,10 +515,8 @@ input:focus-visible,
   box-shadow: 0 12px 36px rgb(0 0 0 / 55%);
 }
 
-/* Framed thick in the selected tab's blue. */
-.hubs-list,
 .confirm-dialog.delete-worktree {
-  border: 3px solid var(--accent);
+  border: 3px solid var(--danger);
 }
 
 /* Undo the user agent's centring and colours of an open dialog. */
@@ -670,7 +671,7 @@ dialog.add-repo-dialog {
 }
 
 .mark-failed {
-  background: #f14c4c;
+  background: var(--danger);
 }
 
 .mark-exited {
diff --git a/test/e2e/contract.ts b/test/e2e/contract.ts
index ece1e19..a5e4163 100644
--- a/test/e2e/contract.ts
+++ b/test/e2e/contract.ts
@@ -34,7 +34,7 @@ export const TID = {
   hostLogin: 'host-login',
   /** Button inside a host banner: "Restart daemon" (outdated local), "Reinstall & restart" (outdated remote) or "Install" (down remote); opens the confirmation dialog, then sends `restartDaemon` or `reinstallDaemon`. */
   hostAction: 'host-action',
-  /** In-page confirmation of a host action or a repo removal; nothing is sent before it is confirmed; text says every running terminal on the host will be killed when it lists none; for a worktree deletion only, framed 3px in the selected repo tab's background colour. */
+  /** In-page confirmation of a host action or a repo removal; nothing is sent before it is confirmed; text says every running terminal on the host will be killed when it lists none; for a worktree deletion only, framed 3px in red. */
   confirmDialog: 'confirm-dialog',
   /** One running terminal the page last saw on the daemon instance the host reports; text holds its worktree label and preset. */
   confirmTarget: 'confirm-target',
@@ -130,9 +130,9 @@ export const TID = {
   notice: 'notice',
   /** Terminal container, `data-host` and `data-term`; holds the `.xterm` element; hidden ones are not visible. */
   terminal: 'terminal',
-  /** Header button "Hubs", present only while there is a remote host; opens the list of `hubsEntry`. */
+  /** Header button "Hubs", present only while there is a remote host; opens the list of `hubsEntry`; coloured like the selected repo tab, hovered or not. */
   hubsMenu: 'hubs-menu',
-  /** The open Hubs menu holding the `hubsEntry` items; framed 3px in the selected repo tab's background colour. */
+  /** The open Hubs menu holding the `hubsEntry` items, with a thin border. */
   hubsList: 'hubs-list',
   /** One per hub in the open Hubs menu, in order: text = "This machine" or the host name; `aria-current="true"` on the page's own hub. */
   hubsEntry: 'hubs-entry',
diff --git a/test/e2e/fixture.ts b/test/e2e/fixture.ts
index 4934a63..0c3033b 100644
--- a/test/e2e/fixture.ts
+++ b/test/e2e/fixture.ts
@@ -108,10 +108,6 @@ export const borderOf = (locator: Locator): Promise<string[]> =>
     });
   });
 
-/** The computed background colour of the selected repo tab. */
-export const selectedTabColour = (page: Page): Promise<string> =>
-  page.locator(`${byTestId(TID.repoTab)}[aria-selected="true"]`).evaluate((el) => getComputedStyle(el).backgroundColor);
-
 /** Confirms the open confirmation dialog. */
 export const confirmAction = async (page: Page): Promise<void> => {
   const dialog = page.locator(byTestId(TID.confirmDialog));
diff --git a/test/e2e/hubs.spec.ts b/test/e2e/hubs.spec.ts
index 870635d..12ef1b3 100644
--- a/test/e2e/hubs.spec.ts
+++ b/test/e2e/hubs.spec.ts
@@ -1,4 +1,4 @@
-import type { Page } from '@playwright/test';
+import type { Locator, Page } from '@playwright/test';
 import { join } from 'node:path';
 import { makeRepo } from '../support/daemon-host.js';
 import { freePort, type HubHost } from '../support/hub-host.js';
@@ -12,7 +12,6 @@ import {
   nodeRemote,
   openUi,
   runUi,
-  selectedTabColour,
   test,
   writeHubConfig,
   type HostConfig,
@@ -82,12 +81,28 @@ test.describe('Hubs menu', () => {
     await expect(page.locator(byTestId(TID.hubsMenu))).toBeFocused();
   });
 
-  test("is framed 3px in the selected tab's colour", async ({ hub, page, ssh }) => {
+  test('the open menu has a thin border', async ({ hub, page, ssh }) => {
     ssh.failHost('box', RESOLVE_ERROR);
     await home(hub, page, [{ name: 'box', ssh: 'box' }]);
     await page.locator(byTestId(TID.hubsMenu)).click();
-    const blue = await selectedTabColour(page);
-    expect(await borderOf(page.locator(byTestId(TID.hubsList)))).toEqual(Array(4).fill(`3px ${blue}`));
+    expect((await borderOf(page.locator(byTestId(TID.hubsList)))).every((side) => side.startsWith('1px '))).toBe(true);
+  });
+
+  test('the Hubs button is coloured like the selected tab, hovered or not', async ({ hub, page, ssh }) => {
+    ssh.failHost('box', RESOLVE_ERROR);
+    await home(hub, page, [{ name: 'box', ssh: 'box' }]);
+    const button = page.locator(byTestId(TID.hubsMenu));
+    const selected = page.locator(`${byTestId(TID.repoTab)}[aria-selected="true"]`);
+    const colours = (locator: Locator): Promise<string[]> =>
+      locator.evaluate((el) => {
+        const style = getComputedStyle(el);
+        return [style.backgroundColor, style.borderTopColor, style.color];
+      });
+    await page.mouse.move(0, 0);
+    const tab = await colours(selected);
+    await expect.poll(() => colours(button)).toEqual(tab);
+    await button.hover();
+    await expect.poll(() => colours(button)).toEqual(tab);
   });
 
   test('is absent without remote hosts', async ({ hub, page }) => {
diff --git a/test/e2e/sidebar.spec.ts b/test/e2e/sidebar.spec.ts
index e226cd5..4c47953 100644
--- a/test/e2e/sidebar.spec.ts
+++ b/test/e2e/sidebar.spec.ts
@@ -17,7 +17,6 @@ import {
   openPage,
   openUi,
   ready,
-  selectedTabColour,
   selectRepo,
   selectWorktree,
   test,
@@ -26,6 +25,8 @@ import {
   watcher,
 } from './fixture.js';
 
+/** `--danger`, as computed. */
+const DANGER = 'rgb(241, 76, 76)';
 const label = (path: string): string => `${worktreeEntry(path)} ${byTestId(TID.worktreeLabel)}`;
 const checkbox = (path: string): string => `${worktreeEntry(path)} input[type="checkbox"]`;
 const boxOf = async (locator: Locator): Promise<{ x: number; y: number; width: number; height: number }> => {
@@ -471,7 +472,7 @@ test.describe('worktree status and deletion', () => {
     expect(git(repo, 'rev-parse', 'feat')).toMatch(/^[0-9a-f]{40}$/);
   });
 
-  test("the deletion dialog is framed 3px in the selected tab's colour; a repo removal's is not", async ({ hub, page }) => {
+  test("the deletion dialog is framed 3px in red; a repo removal's is not", async ({ hub, page }) => {
     const { repo, worktrees } = makeRepoWith(hub, 'app', ['feat']);
     const feat = worktrees[0] ?? '';
     withOrigin(hub, repo);
@@ -482,13 +483,12 @@ test.describe('worktree status and deletion', () => {
     await page.locator(worktreeEntry(feat)).click({ button: 'right' });
     await page.locator(byTestId(TID.deleteWorktree)).click();
     await expect(dialog).toBeVisible();
-    const blue = await selectedTabColour(page);
-    expect(await borderOf(dialog)).toEqual(Array(4).fill(`3px ${blue}`));
+    expect(await borderOf(dialog)).toEqual(Array(4).fill(`3px ${DANGER}`));
     await dialog.locator(byTestId(TID.confirmCancel)).click();
 
     await page.locator(repoTab(repo)).locator(byTestId(TID.removeRepo)).click();
     await expect(dialog).toBeVisible();
-    expect((await borderOf(dialog)).every((side) => side.startsWith('1px ') && !side.endsWith(blue))).toBe(true);
+    expect((await borderOf(dialog)).every((side) => side.startsWith('1px ') && !side.endsWith(DANGER))).toBe(true);
   });
 
   test('deleting a detached worktree with commits says they become unreachable and names its head', async ({ hub, page }) => {