How to highlight a data pill with yellow in Flow Designer

[jaubert]

In my flow I have a Send Email action.  I am trying to highlight the data pill value in my email with yellow.  I have tried to modify the code but when I save it disappears.  Am I doing something wrong or is this not possible to do?

<span class="data_parent_pill" style="background: yellow; mso-highlight: yellow; display: inline;" contenteditable="false" data-pillvalue="{{fd_transform:0241de17-eb15-4955-9925-629bd9e39b27}}">

Thanks

[Sujatha V M]

@jaubert I tried to replicate your use case. Please find my implementation steps below, 

In Send Email Action, I have added a data pill for testing and have added the syntax as,

Result : 

Hex code used for yellow : #fff333

Please mark this as helpful and accept it as a solution if this resolves your query.

Thanks,

Sujatha V.M.