Fix closed issue color in notifications view (#8305)

Fixes #7300

Author: alexr00

package.json

@@ -3696,6 +3696,16 @@
 				},
 				"description": "The color used for indicating that an issue is closed."
 			},
+			{
+				"id": "github.issues.closed",
+				"defaults": {
+					"dark": "pullRequests.merged",
+					"light": "pullRequests.merged",
+					"highContrast": "editor.foreground",
+					"highContrastLight": "editor.foreground"
+				},
+				"description": "The color used for indicating that an issue is closed. Duplicates issues.closed because there's another extension that uses this identifier."
+			},
 			{
 				"id": "pullRequests.merged",
 				"defaults": {

src/issues/issuesView.ts

@@ -104,7 +104,7 @@ export class IssuesTreeData
 			treeItem.iconPath = (await DataUri.avatarCirclesAsImageDataUris(this.context, [avatarUser], 16, 16))[0] ??
 				(element.isOpen
 					? new vscode.ThemeIcon('issues', new vscode.ThemeColor('issues.open'))
-					: new vscode.ThemeIcon('issue-closed', new vscode.ThemeColor('issues.closed')));
+					: new vscode.ThemeIcon('issue-closed', new vscode.ThemeColor('github.issues.closed')));
 		} else {
 			// Use GitHub codicon when assignee setting is selected but no assignees exist
 			treeItem.iconPath = new vscode.ThemeIcon('github');

src/notifications/notificationsManager.ts

@@ -121,7 +121,7 @@ export class NotificationsManager extends Disposable implements vscode.TreeDataP
 		if (notification.subject.type === NotificationSubjectType.Issue && model instanceof IssueModel) {
 			item.iconPath = element.model.isOpen
 				? new vscode.ThemeIcon('issues', new vscode.ThemeColor('issues.open'))
-				: new vscode.ThemeIcon('issue-closed', new vscode.ThemeColor('issues.closed'));
+				: new vscode.ThemeIcon('issue-closed', new vscode.ThemeColor('github.issues.closed'));
 		}
 		if (notification.subject.type === NotificationSubjectType.PullRequest && model instanceof PullRequestModel) {
 			item.iconPath = model.isOpen