Grapesjs UI in Mautic 4.0.2 has some hard to recognize buttons

I just upgraded to Mautic 4.0.2 and recognized that the grapsjs UI for Typography and Decorations has some buttons with low contrast, which makes it hard to recognize what the buttons are for (see picture).

As I do not know where to adjust the button colors of the builder, it would be great if this would be corrected in one of the next updates.

I really love the new page/email builder, even though it is as it is right now.
Thanks a lot for all the great work.

All the Best,
Stephan