Why can't is set "open" and "colored" on the same line ?

Question

WORKS:

2022-11-19 is open

2022-11-19 is colored in orange

DOES NOT WORK:

2022-11-19 is open and is colored in orange

Answer 1

Hello C., and all,

FYI, this now works with the last version (V1.2022.13).

Here is an example:

@startgantt
project starts 2022-11-15
saturday are closed
sunday are closed

2022-11-19 is open and is colored in orange

[b] happens 2022-11-15
[a] starts 2022-11-16 and lasts 6 days
@endgantt

Thanks to PlantUML team. 
Regards.