If you’re talking about achieving the same effect as your images：
lv_label_set_text(label1, LV_SYMBOL_OK "OK");
If you are talking about setting the background of the BTN as an image, you can refer to this
if you want to set the BTN shape as an image too, you need to set more style properties.
In addition, it is best not to ask new questions under an already resolved topic, unless the previous answer did‘t solve your question.New problems can be helped by Posting a new topic.