Change the size, position and color of the step buttons

Open the Abstract Module in Eventure online and go to Page editor -> Abstract wizard -> Select one of the step buttons-> Click the right mouse button 

At the 'Colour visited' tab, you can change colour of the visited step button and the text colour.

At the 'Colour active' tab, you can change the colour of the active step button and the text colour.

At the 'Colour unvisited' tab, you can change the colour of the unvisited step button and the text colour.

On the 'Text' tab, you can change the text, the font size and the position of the step buttons.

End result