XnView Software

Thanks for the help Franky and user0
Indeed it is controlled by the "default color" option on the Settings > Thumbnails > Label colors page, but only when you have ticked the "Use color based on the file format" option. If I deselect that option it my screen looks like the screen shot from Franky ...

Could I pointed in the right direction as to how to change the colour of either the text or title view of folder when in browser mode to improve contrast/visibility. I'm on Win10 dark theme. Here's a screenshot showing my current view