V1.5.1 no more export for ui_imgset?

Bugs
1

In previous versions images were exported like this, in the ui.c file:

const lv_img_dsc_t *ui_imgset_mixer[6] = {&ui_img_anim_mixer00_png, &ui_img_anim_mixer01_png, &ui_img_anim_mixer02_png, &ui_img_anim_mixer03_png, &ui_img_anim_mixer04_png, &ui_img_anim_mixer05_png};

Single images too:
const lv_img_dsc_t *ui_imgset_bell[1] = {&ui_img_bell48_png};

…but since v1.5.x they are no longer exported.
Why?
Am I missing an option in the settings?
Thanks.

2

Starting from version 1.5.1, image export functionality includes filtering. To export an image or image set, it must be applied to an object. Alternatively, you can enable the “Force export all images” option within the project settings to include all images regardless of usage.