3 files changed, 29 insertions, 6 deletions
diff --git a/defs/all.h b/defs/all.h
index d7873a1..681b34d 100644
--- a/defs/all.h
+++ b/defs/all.h
@@ -7,6 +7,7 @@
 #include <string.h>
 #include <locale.h>
 #include <stdbool.h>
+#include <ctype.h>
 
 #include "helper.h"
 
diff --git a/defs/colors.h b/defs/colors.h
index 0c376db..a3179f8 100644
--- a/defs/colors.h
+++ b/defs/colors.h
@@ -1,7 +1,7 @@
 #ifndef COLORS_H
 #define COLORS_H
 
-#include <stdlib.h>
+#include <stddef.h>
 #include <stdbool.h>
 
 typedef enum color_mode {
@@ -31,9 +31,9 @@ typedef enum NamedColor {
 }NamedColor;
 
 typedef struct{
-    int red;
-    int green;
-    int blue;
+    unsigned char red;
+    unsigned char green;
+    unsigned char blue;
 }rgbcolor;
 
 typedef struct colorconfig {
@@ -43,8 +43,29 @@ typedef struct colorconfig {
     bool rainbow_enabled;     //flag
     int saturation;          //default 100
     int brightness;          //default 50
-    char **rainbow_cache;       //array of rgb_color malloced
+    rgbcolor *rainbow_cache;    //array of rgbcolor malloced
     size_t rainbow_count;
 }colorconfig;
 
-#endif 
+typedef enum ColorParseError {
+    COLOR_OK,
+    COLOR_ERR_FORMAT,
+    COLOR_ERR_HEX,
+    COLOR_ERR_RGB,
+    COLOR_ERR_HSL,
+    COLOR_ERR_UNKNOWN_NAME
+}ColorParseError;
+
+void colorconfig_init(colorconfig *config);
+enum color_mode detect_color_mode(void);
+bool enable_windows_ansi(void);
+int parse_namedcolors(const char *name, rgbcolor *out_rgb);
+ColorParseError parse_color(const char *s, rgbcolor *out);
+const char *color_parse_error_message(ColorParseError error);
+unsigned char rgb_to_ansi16(rgbcolor rgb);
+unsigned char rgb_to_ansi256(rgbcolor rgb);
+rgbcolor hsl_to_rgb(unsigned short h, unsigned char s, unsigned char l);
+rgbcolor lerp_color_hsv(rgbcolor start, rgbcolor end, float t);
+void rgb_to_fg_escape(rgbcolor rgb, color_mode mode, char *out, size_t size);
+
+#endif
diff --git a/defs/helper.h b/defs/helper.h
index d199cc2..a8a7988 100644
--- a/defs/helper.h
+++ b/defs/helper.h
@@ -2,5 +2,6 @@
 #define helper_h
 
 int displaywidth(const char *text);
+int utf8_decode(const unsigned char *bytes, unsigned long *codepoint); 
 
 #endif