How to remove background for arc

Description

Hi,
How to remove background square box for arc?

What MCU/Processor/Board and compiler are you using?

ARM

What LVGL version are you using?

7

What do you want to achieve?

How to remove background square box for arc?

What have you tried so far?

Code to reproduce

void lv_ex_arc_1(void) 
{
  /*Create an Arc*/
  lv_obj_t * arc = lv_arc_create(lv_scr_act(), NULL);
  lv_arc_set_end_angle(arc, 200);
  lv_obj_set_size(arc, 150, 150);
  lv_obj_align(arc, NULL, LV_ALIGN_CENTER, 0, 0);
}

Screenshot and/or video

If possible, add screenshots and/or videos about the current state.

I believe setting the bg_opa style property to LV_OPA_TRANSP on LV_ARC_PART_BG will do the trick.

Thanks for the support. i added extra line in my style i.e., border_width. it fixed my issue.