I try this: decoration-primary="state=='Aperto'" but no good i have try: decoration-primary="state==('16,Aperto')" 16 is "id" but not work

Thank You 

Use 'decoration' attribute

Try these:

decoration-bf - shows the line in BOLD

decoration-it - shows the line in ITALICS

decoration-danger - shows the line in LIGHT RED

decoration-info - shows the line in LIGHT BLUE

decoration-muted - shows the line in LIGHT GRAY

decoration-primary - shows the line in LIGHT PURPLE

decoration-success - shows the line in LIGHT GREEN

decoration-warning - shows the line in LIGHT BROWN

<tree decoration-muted="state=='draft'" decoration-info="state == 'confirm'">

Just make sure that the field state is part of the tree view definition and also that you are using the proper state value instead of the display name as selection fields are composed of tuple of (value, display_name) and probably your comparison is not with 'Open', probably is with 'open' if the selection value is defined like ('open', 'Open')