Report Theme JSON Schema Problem - color - slicer items background (dropdown)

[Anonymous]

Hi dear,
We need to set slicer items background transparent when in "dropdown" style.

Could you please change the regular expression in "color" property of theme JSON schema?

Now we can't set color transparency in the theme file...😂 In previous version, we can. 

"definitions": {

        "color": {

            "type": "string",

            "pattern": "^#([a-fA-F0-9]{3}){1,2}$"

        }
}

Thank you very much!