bug(MatSelectionList): Spacing too large between checkbox / radio when set to togglePosition="before"
- Dominant language
- TypeScript
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- Avg merge
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Description
### Is this a regression?
- [X] Yes, this behavior used to work in the previous version
### The previous version in which this bug was not present was
15
### Description
Using a `` component, and setting the options with `` results in too much space between the toggle and the content. According to [the Material spec](https://m3.material.io/components/lists/specs#ff521a61-bab9-4e75-bded-dee94fd31f61) for lists, the spacing between toggle and content should be 16px. Currently its about 35px all in.
Screenshot from stackblitz:

Screenshot from the Material spec:

### Reproduction
StackBlitz link: https://stackblitz.com/edit/v9ccty?file=src%2Fapp%2Flist-selection-example.html
### Expected Behavior
There should be a total of 16px of space between the toggle and the content.
### Actual Behavior
There is approximately 35px of space between the toggle and the content.
### Environment
Angular CLI: 16.2.0
Node: 18.14.0
Package Manager: yarn 3.2.0
OS: darwin arm64
Angular: 16.2.0
... animations, cdk, cli, common, compiler, compiler-cli, core
... forms, language-service, localize, material
... material-moment-adapter, platform-browser
... platform-browser-dynamic, router
Package Version
----------------------------------------------------------
@angular-devkit/architect 0.1602.0
@angular-devkit/build-angular 16.2.0
@angular-devkit/core 16.2.0
@angular-devkit/schematics 16.2.0
@angular-devkit/schematics-cli 16.2.0
@angular/flex-layout 15.0.0-beta.42
@schematics/angular 16.2.0
ng-packagr 16.2.0
rxjs 7.8.1
typescript 5.1.6
zone.js 0.13.1
Contributor guide
Research direction
Start with the linked StackBlitz reproduction, especially src/app/list-selection-example.html, and inspect the mat-selection-list behavior when togglePosition="before". Compare the rendered spacing with the Material list specification. Done means the toggle-to-content spacing is 16px without regressing the selection-list layout.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- angular
- Domain
- design, frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100