Intellisense window is not readable (too small)

Intellisense window is not readable (too small) I use 34" monitor 3440x1440, 125% text scale

You can set the font and size in Preferences > General:

Note that the font size in the completion proposal is the same as in the menus and lists of the application.

Hi, thanks for quick tip. I have changed "windows 125% text scale" to 100%, then TEXTS were fitting to WINDOW correctly. But font was too small.

When I used your tip and rised font from 10 to 15, font size is OK, but WINDOW is not resizing - see picture. So problem is size of window, not size of font, which could be changed, but it is helpless until window is so small. Texts are cut on borders...

That proposal window is normally resizable via mouse:

But that does not work with an active style (for instance the dark one you selected). So, you need to reset your style/theme to "Windows", resize the proposal window and set your style back to the dark one.

See also related topic and tickets:

• https://www.heidisql.com/forum.php?t=26729
• issue #583
• https://github.com/SynEdit/SynEdit/issues/123
• https://github.com/RRUZ/vcl-styles-utils/issues/262

Reading your comments again, I suppose you should probably increase your screen DPI to 150%. At least testwise. Reset the font in HeidiSQL again to system default. Then the proposal window should have normal dimensions, I guess.