Add ability to customize LV_TXT_COLOR_CMD

lv_conf_template.h

@@ -357,6 +357,9 @@ typedef void * lv_font_user_data_t;
  * Depends on LV_TXT_LINE_BREAK_LONG_LEN. */
 #define LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN 3
 
+/* The control character to use for signalling text recoloring. */
+#define LV_TXT_COLOR_CMD "#"
+
 /* Support bidirectional texts.
  * Allows mixing Left-to-Right and Right-to-Left texts.
  * The direction will be processed according to the Unicode Bidirectioanl Algorithm:

src/lv_misc/lv_txt.h

@@ -27,7 +27,9 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
+#ifndef LV_TXT_COLOR_CMD
 #define LV_TXT_COLOR_CMD "#"
+#endif
 
 #define LV_TXT_ENC_UTF8 1
 #define LV_TXT_ENC_ASCII 2