Mobile project css error

Wappler Version : 2.5.0
Operating System : Mac 10.14

Expected behavior

The index.css file created with a new blank mobile project should be error free

Actual behavior

The index.css file generated has an invalid background-image command which prevents other edits from being saved.

How to reproduce

Create a blank mobile project
See the error as shown below, along with a valid alternative:

Screen Shot 2020-01-16 at 11.06.52 AM

The code generating the error

background-image:linear-gradient(top, #A7A7A7 0%, #E4E4E4 51%);