I am not sure if I use the right words. The marker tool is great but I find that when I use marker, the pattern under it may look weird. You can compare the result of the marker in Snipaste and Adobe reader.
In real world we use a marker or highlighter to make the words more easy to be find and read. In Snipaste, however, the black text is more hard to read because it is also "lighter".
I paste a image to help explain what I said above.

I am not sure if I use the right words. The marker tool is great but I find that when I use marker, the pattern under it may look weird. You can compare the result of the marker in Snipaste and Adobe reader.
In real world we use a marker or highlighter to make the words more easy to be find and read. In Snipaste, however, the black text is more hard to read because it is also "lighter".
I paste a image to help explain what I said above.