diff --git a/src/include/serial.h b/src/include/serial.h
index 717aa35..e8d63fc 100644
--- a/src/include/serial.h
+++ b/src/include/serial.h
@@ -12,5 +12,7 @@ int dbgf(const char *restrict format, ...);
 int warn(const char *restrict format, ...);
 int error(const char *restrict format, ...);
 int fixme(const char *restrict format, ...);
+int todo(const char *restrict format, ...);
+void panic(const char *restrict format, ...);
 
 #endif
diff --git a/src/kernel.c b/src/kernel.c
index 4ede7ba..12f7aab 100644
--- a/src/kernel.c
+++ b/src/kernel.c
@@ -9,4 +9,6 @@ void kernel_main() {
   warn("test warning debug %d\n", 42);
   error("test error debug %d\n", 42);
   fixme("test fixme debug %d\n", 42);
+  todo("test todo debug %d\n", 42);
+  panic("test panic\n");
 }
diff --git a/src/serial.c b/src/serial.c
index 80b3901..85912bf 100644
--- a/src/serial.c
+++ b/src/serial.c
@@ -1,6 +1,7 @@
 #include <serial.h>
 #include <asm.h>
 #include <stdio.h>
+#include <vga.h>
 
 int serial_init() {
   outb(PORT + 1, 0x00);    // Disable all interrupts
@@ -58,7 +59,7 @@ int warn(const char *restrict format, ...) {
   int size;
   va_list ap;
   va_start(ap, format);
-  dbgf("WARNING: ");
+  dbgf("\033[1;33mWARNING:\033[0m ");
   size = vdbgf(format, ap);
   va_end(ap);
   return size;
@@ -68,7 +69,7 @@ int error(const char *restrict format, ...) {
   int size;
   va_list ap;
   va_start(ap, format);
-  dbgf("ERROR: ");
+  dbgf("\033[1;31mERROR:\033[0m ");
   size = vdbgf(format, ap);
   va_end(ap);
   return size;
@@ -78,8 +79,31 @@ int fixme(const char *restrict format, ...) {
   int size;
   va_list ap;
   va_start(ap, format);
-  dbgf("FIXME: ");
+  dbgf("\033[32mFIXME:\033[0m ");
   size = vdbgf(format, ap);
   va_end(ap);
   return size;
 }
+
+int todo(const char *restrict format, ...) {
+  int size;
+  va_list ap;
+  va_start(ap, format);
+  dbgf("\033[92mTODO:\033[0m ");
+  size = vdbgf(format, ap);
+  va_end(ap);
+  return size;
+}
+
+// FIXME: maybe this function shouldn't be here
+void panic(const char *restrict format, ...) {
+  va_list ap;
+  va_start(ap, format);
+  terminal_setcolor(VGA_COLOR_RED);
+  kprintf("PANIC: ");
+  terminal_setcolor(VGA_COLOR_LIGHT_GREY);
+  dbgf("\033[31mPANIC:\033[0m ");
+  kvprintf(format, ap);
+  vdbgf(format, ap);
+  va_end(ap); // FIXME: not return from this function
+}