Viewer on hi-res monitor
On monitor with res 3840x2160, text viewer is tiny…cannot read it.
Editor is ok - proper size and workable, but letters are very faint.
There have been other threads in the past on high-resolution monitors, like https://notepad-plus-plus.org/community/topic/14634/app-scaling-in-4k-resolution and https://notepad-plus-plus.org/community/topic/13528/high-resolution-monitor-issues … but those seem more focused on the interface than the text size.
If it’s just the text size is too small, you could try changing
Settings > Style Configurator > Global Styles > Default Style > Font Style > Font Sizeto a bigger font.