diff --git a/src/proto/highlight.pro b/src/proto/highlight.pro
index ca44981..4c6b2f7 100644
--- a/src/proto/highlight.pro
+++ b/src/proto/highlight.pro
@@ -14,6 +14,12 @@
 void hl_set_bg_color_name(char_u *name);
 void hl_set_fg_color_name(char_u *name);
 guicolor_T color_name2handle(char_u *name);
+guicolor_T decode_hex_color(char_u *hex);
+guicolor_T colorname2rgb(char_u *name);
+void save_colorname_hexstr(int r, int g, int b, char_u *name);
+void load_default_colors_lists(void);
+guicolor_T gui_get_color_cmn(char_u *name);
+guicolor_T gui_get_rgb_color_cmn(int r, int g, int b);
 int get_cterm_attr_idx(int attr, int fg, int bg);
 int get_tgc_attr_idx(int attr, guicolor_T fg, guicolor_T bg);
 int get_gui_attr_idx(int attr, guicolor_T fg, guicolor_T bg);