Which file is highlighted in the browser?

1. What file is highlighted in the browser? Try to guess in one second. I ask the developers to make the display of the highlighted file clearer. I do not need a white border, I need to change the color of the field from dark gray to light gray, as in the ACDsee program
2. Yes, I noticed that the display of the exported file has changed. Thanks. But the pictogram is too small. Sometimes it is not visible, it merges with the image.