Opacity

Name	Value
opacity-0	`0` Defined in `src/theme-wikimedia-ui.json`
opacity-60	`0.65` Defined in `src/theme-wikimedia-ui.json`
opacity-100	`1` Defined in `src/theme-wikimedia-ui.json`
opacity-base	`1` Defined in `src/codex-base.json` Refers to `opacity.100`
opacity-overlay	`0.65` Defined in `src/codex-base.json` Refers to `opacity.60`

Opacity #