Make sure that px_opa is initialized in lv_draw_letter
Make sure that the variable px_opa in lv_draw_letter is initialized,
else a compile time warring will occur .
@@ -333,7 +333,7 @@ void lv_draw_letter(const lv_point_t * pos_p, const lv_area_t * mask_p, const lv
map_p += bit_ofs >> 3;
uint8_t letter_px;
- lv_opa_t px_opa;
+ lv_opa_t px_opa = 0;
uint16_t col_bit;
col_bit = bit_ofs & 0x7; /* "& 0x7" equals to "% 8" just faster */
