#define LV_USE_ROLLER 1 /*Requires: lv_label*/ #define LV_USE_SCALE 1 #define LV_USE_SLIDER 1 /*Requires: lv_bar*/ #define LV_USE_SPAN 1 #if LV_USE_SPAN /*A line text can contain maximum num of span descriptor */ #define LV_SPAN_SNIPPET_STACK_SIZE 64 #endif #...