Traveller App Area Shading. Turn off?

The dots are Place clusters - the numbers indicate how many Places are within that region, therefore to view them you need to expand the zoom more. They are clustered to ensure the map is not too cluttered with icons everywhere when you aren't zoomed in enough to show them all. Zooming in more removes the cluster dots. You can press them to expand a little, press again until you see the actual individual Place icons. Or use the + zoom control.

Level 9 is quite low zoom. So to avoid the issue with not being able to view text just increase zoom to 13 - if offline that is the max 100% clarity of the 144K scale. If online you can zoom in further to zoom level 16 which again would make the text more legible.

Is this the view you mean where the text is hard to read due to the background dots or the green circles with numbers. The green circles can be removed if you deselect all the filters for points of interest