Rename blazor-wasm-servicedefaults template shortName to blazorwasm-servicedefaults and ship with Blazor icon

[danroth27]

Summary

The new Blazor WebAssembly Service Defaults template (added for Aspire integration in .NET 11) ships with shortName blazor-wasm-servicedefaults. The existing standalone WASM template ships with shortName blazorwasm. We should rename the new template to blazorwasm-servicedefaults for consistency.

Separately, the new template renders with the default .NET icon in IDE template pickers because its ide.host.json does not specify an icon. The existing blazorwasm template references the Blazor icon. We should ship the Blazor icon for the service defaults template too.

Suggested changes

In src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWasmServiceDefaults-CSharp/.template.config/:

1. template.json — change "shortName": "blazor-wasm-servicedefaults" to "shortName": "blazorwasm-servicedefaults".
2. ide.host.json — add "icon": "ide/icon.ico" and ship the Blazor icon.ico under ide/ (same icon used by the existing blazorwasm template at ComponentsWebAssembly-CSharp/.template.config/ide/icon.ico).

Repro

dotnet new list blazor on .NET 11 Preview 5 SDK shows:

Blazor Web Worker                    blazorwebworker              [C#]      Web/Blazor/WebAssembly/Worker/Library
Blazor WebAssembly Service Defaults  blazor-wasm-servicedefaults  [C#]      Blazor/WebAssembly/Library/OpenTelemetry
Blazor WebAssembly Standalone App    blazorwasm                   [C#]      Web/Blazor/WebAssembly/PWA

The hyphen between blazor and wasm is inconsistent with the existing blazorwasm shortName.

Notes

Found while building a Blazor WASM + Aspire 13.5 demo for Microsoft Build 2026.

[github-actions]

Triage Summary

Area: area-blazor — already applied; relates to the Blazor WebAssembly Service Defaults project template (BlazorWasmServiceDefaults-CSharp).
Type: Bug — the template ships with an inconsistent shortName (blazor-wasm-servicedefaults instead of blazorwasm-servicedefaults) and is missing the Blazor icon in ide.host.json, both of which are unintended defects in the new template.

Potential Duplicates

• None found — no existing open issues describe this specific template shortName/icon problem.

Notes

Two discrete fixes are requested:

1. template.json: rename shortName from blazor-wasm-servicedefaults → blazorwasm-servicedefaults for naming consistency with blazorwasm.
2. ide.host.json: add "icon": "ide/icon.ico" and copy the Blazor icon from the existing ComponentsWebAssembly-CSharp template so the new template displays correctly in IDE template pickers.

Generated by Issue Triage Agent for dotnet/aspnetcore for issue #66882 · sonnet46 589.8K · ◷