Andrew Jakubowicz

### Which package is this a feature request for? Release-image script. ### Description Followup to https://github.com/lit/lit/issues/2503 Consider the visual aspects of the release image, and any changes that we want...

[benchmarks] ClassMap benchmarks

2

Repurpose most of the work done in https://github.com/lit/lit/pull/2125 to track our classMap directive performance.

[labs/router] Add support to Router with none of its own routes.

2

### Why We document that a top level Router does not need routes, however this is not supported currently. This draft adds a test to "mimic" what I think the...

[labs/observers] Improve controllers value type

3

Issue: https://github.com/lit/lit/issues/2350 ### Background The `value` property was typed as unknown. ``` const resizeController = new ResizeController(host, {callback: () => true}); resizeController.value // Type is unknown. ``` After this change:...

[infra] exploratory fix Safari breaking in scoped-registry-mixin test

2

### Context Exploratory fix for the following error in CI: ``` ../labs/scoped-registry-mixin/development/test/scoped-registry-mixin_test.js: 🚧 Browser logs on macOS 10.15 Safari latest: TypeError: Importing a module script failed. ❌ Could not import...

Clone of https://github.com/lit/lit-element-starter-js/issues/27 ### Context This repository gets overwritten by changes from the Lit mono-repo. Communication needs to be updated to prevent the confusion of issues or pull requests being...

[design-doc] How lit-html works

5

Fixes https://github.com/lit/lit.dev/issues/1132 ### Context This PR brings our "How Lit Works" wiki page into source control and into the design docs folder in the monorepo. First commit is a pristine...

### Which package(s) are affected? Other/unknown (please mention in description) ### Description The mixin sample on lit.dev is no longer transformable when upgrading TypeScript from 4.6.2 -> 4.7.4. This can...

[lit-labs/observers] add base class

3

Issue: https://github.com/lit/lit/issues/2350 This PR adds a base class to IntersectionController, ResizeController, and MutationController. Fixed a bug where we accept a ResizeController config and then never use it. Fixed by passing...

[lit-labs/ssr] Shared and de-duplicated declarative styles utility

12

Issue: https://github.com/lit/lit/issues/4357 ### Background Currently, there is no way to deduplicate styles in the declarative shadow DOM. This PR provides an opt-in mechanism (if JavaScript is enabled), to deduplicates declarative...