SQL DATA LENS ships with two themes, Flat Light and Flat Dark, and both were built to stay legible on a high-resolution display. If you spend the day reading result grids, this matters more than it sounds.
The two themes
Both themes are based on FlatLaf, which also gives the windows their native Windows 11 behaviour. The dark theme is a real dark theme rather than an inverted light one: grid lines, selection colours and syntax highlighting in the SQL editor are tuned separately for it, so the contrast between keyword, string and comment survives on a dark background.
Where the setting lives
The theme is chosen in the application options, under the look-and-feel setting, and applies to the whole interface — navigator, editors, grids and dialogues. The choice is stored with the rest of your user data in the .sqldl folder in your user profile, so it survives restarts.
HiDPI scaling
There is deliberately no scaling setting inside SQL DATA LENS. Scaling follows the system scale factor you set in the Windows Display settings dialogue, so per-monitor DPI works correctly: drag a window from a 4K laptop panel to a 1080p external monitor and the interface re-scales for the monitor it is on. If text looks wrong, the fix is at the operating system level.
The default font is JetBrains Mono, picked for reading dense grids and code for hours at a time; the Table Viewer and every other grid use it too.
Grab the current build from the download page.