UI Theme Designer - custom theme parameters - How to

[#1]

Hello,

i started working with UI Theme Designer cause we need to setup different color setting for each system in S/4 landscape. However, after setting some basic stuff i run into issue, that when i want to e.g. setup colors in Calendar, i have no idea which parameters should be set. There is no indication in Designer itself and i ended up with trial & error, but this is time consuming, e.g. for Calendar:

I want to have more saturated text and in my custom color scheme, but i am at loss where to look for. Is there any interactive help in Designer or somewhere else when i need to change something particular? Also Search bar is visible only when i Save & Preview in another page, which is really time consuming so trial & error is really not possible. 

FYI: Theme Designer is updated and no issues indicated in report  WDG_MAINTAIN_UR_MIMES

Many thanks.

[S0027140105]

FYI if you are interested as well, i asked SAP support for this, there is no such advice available, they suggested to submit an idea to be developed in future.