[LVGL] "Unused bitmap" is reported although image exists on main page

[RE2012]

Describe the bug If you check or build a project then "Unused bitmap" is reported for every image although image exists on page.

To Reproduce Steps to reproduce the behavior:

1. in studio go to "Home" page, select "examples" and select project "eez_lvgl_demo"
2. click "edit project"
3. click on "check" button
4. in output, see "unused bitmap: logo_eez" and "unused bitmap: logo_lvgl"

Expected behavior It should only report unused bitmaps.

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Version 10

LVGL version (if used)

• 8.3, same with 9.0

eez-studio version

• 0.13.0