Thank you for your response, but it does not address my problem. Perhaps I was unclear, or perhaps GuiGuider can not do what I expected. Import font can only import .ttf files.
Maybe this is a clearer example:
I import a free font from Google : Roboto_Medium.ttf. I can use this font in GuiGuider UI Editor and all looks fine on the preview display.
But I need to display some large digits, say 72 points. I can assign Roboto_Medium, size 72 in the Attribute panel for my number text label in UI Editor. The preview looks fine. When I generate C code, it creates generated/guider_fonts/lv_font_Roboto_Medium_72.c. My application works, but the generated font .c file is >1MB in size, because the text is so large.
I only need digits from this font, so I generate a custom font, with only numeric digits. The generated font file lv_customer_font_Ronoto_Medium_72.c is only 50KB - 95% smaller. I want to use this font file in the final application, and not use the 1MB file.
I cannot find a way to specify this custom font for my text label using UI Editor to generate the C code.
I can write custom app code to overwrite the font set by UI Editor, but I still have the 1MB file linked in my app.
I can try to not use Roboto_Medium/72 in the UI Editor and thus not include the 1MB file, but then my preview looks wrong.
Am I stuck?