lv_conf_templ: minor updates

lv_conf_templ.h

@@ -16,7 +16,7 @@
  * to store the graphical objects and other data */
 #define LV_MEM_CUSTOM      0                /*1: use custom malloc/free, 0: use the built-in lv_mem_alloc/lv_mem_free*/
 #if LV_MEM_CUSTOM == 0
-#define LV_MEM_SIZE    (32U * 1024U)        /*Size memory used by mem_alloc (in bytes)*/
+#define LV_MEM_SIZE    (32U * 1024U)        /*Size memory used by `lv_mem_alloc` in bytes (>= 2kB)*/
 #define LV_MEM_ATTR                         /*Complier prefix for big array declaration*/
 #define LV_MEM_AUTO_DEFRAG  1               /*Automatically defrag on free*/
 #else       /*LV_MEM_CUSTOM*/
@@ -27,7 +27,7 @@
 
 /*===================
    Graphical settings
- *=====================*/
+ *===================*/
 
 /* Horizontal and vertical resolution of the library.*/
 #define LV_HOR_RES          (320)
@@ -52,9 +52,6 @@
 /*Screen refresh settings*/
 #define LV_REFR_PERIOD      50    /*Screen refresh period in milliseconds*/
 #define LV_INV_FIFO_SIZE    32    /*The average count of objects on a screen */
-#define LV_INV_FULL_ROW     0     /*1: Force invalid areas to be as wide as the screen*/
-#define LV_INV_FULL_COL     0     /*1: Force invalid areas to be as tall as the screen*/
-
 
 /*=================
    Misc. setting