SUMMARY *** Whitespaces are not displayed when "Show Non-Printable Spaces" is ON *** STEPS TO REPRODUCE 1. Open a new tab 2. Type some text with tabs and spaces 3. Toggle "Show Non-Printable Spaces" on OBSERVED RESULT Whitespaces are not displayed EXPECTED RESULT Whitespaces are displayed SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Debian 12 (available in About System) KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 ADDITIONAL INFORMATION Reproducible on Kate 23.08.2, Windows 10
You need to enable 'show whitespace indicators' in the appearance config page. That works as designed, that other option in the menu doesn't trigger for that kind of spaces.