Problems with Bitmaps on TFT Display using GFX Library

david_prentice:
Yes, ideally his project could be organised as project.ino, bitmaps.h bitmaps.c
bitmaps.h could ensure correct types and linkage

Definitely yes. And this is the reason why I wrote a message in this topic. Not for advertising anything.
Earlier here I saw the topic, where the Arduino's punter, following the common practice, placed a huge font in the header file. And then included it in those source code files where the font was required.

david_prentice:
I would be interested to know whether your application is able to perform this common task.
You do not have to tell me. You can keep it a secret.

It's also possible.
This secret is published on home page of app.

david_prentice:
Edit. My apologies. It looks as if you can "import" a graphic and "convert" it to a C file according to a "image.tmpl"

So it is possible to create C files with suitable format for Arduino projects. C files from your default template do not compile.

You are right.