Conditional Formatting not available on "lean" report

Here is my measure:

Color - Goal Condition =

IF(

    [Abandon % - Goal] > [% Abandoned],

    "rgba(7, 53, 87, 0.5)",

    "rgba(7, 53, 87)"

)

I have this measure on a "lean" report connected to a Power BI dataset. However, this measure will not work if it is saved on the "lean" report. It will only work when I create this measure in the actual dataset and then use on the "lean" report once the dataset is published again.

This measure should work when created in the "lean" report, as it would make things so much more convenient. On the dataset, I like to create large base calculations, and then on the "lean" report side, I would like to create all formatting and design dax measures. It would make life easier if this measure would work on the "lean" PBIX file.