Support the kevlar_watch_fixie and kevlar_watch_grid layouts?

[WesselKroos]

Is your feature request related to a problem? Please describe. Some users seem to have another YouTube layout on which the ambient light is not available. This might be an A/B test?

Describe the solution you'd like Investigate if it is relatively easy to make the ambient light available for those layouts.

Additional context There are 2 layouts currently not supported:

• The ytd-watch-fixie layout with the experimental flag kevlar_watch_fixie: true
• The ytd-watch-grid layout with the experimental flag kevlar_watch_grid: true

Those can be enabled by executing the follow script before base.js javascript runs:

ytcfg.set('EXPERIMENT_FLAGS', {
    ...ytcfg.get('EXPERIMENT_FLAGS'),
    kevlar_watch_fixie: true
})