[enhancement]: Different color in process viewer for started vs current steps

[nightmngr]

Feature description

Add different colors in the instance viewer to help differentiate between steps that are current and steps that are current and already started.

Describe alternatives you've considered

No response

Additional context

At the moment all current steps are painted green. In some projects we have steps that take longer to complete (e.g. document upload or document validation). It would be nice for users to be able to differentiate between steps that are current but not started at all and steps that are current but are also started from the user (flow_subflows.sbfl_work_started is not null).

I don't have color suggestions, but I know people will complain about whatever you chose.
When the step is completed it can be gray for both of them :)
THANK YOU FLOWS TEAM

[rallen2010]

Interesting idea. Could we extend that so for subprocesses that are started are also the 'started' colour. That might make the green on green colouring of subprocesses clearer? On colour, A lighter pastel shade of green maybe?

[nightmngr]

With subprocesses we haven't noticed it as much, because when the process comes to this point the users know that the process "hangs" in the subprocess (like backend processing) and they expand it and see immediately the pending task. Green on green sounds good. Lighter tones for current steps, more vivid color for current steps that are already started sort of like when you focus on an item?