Ammend the comment

It is values not indexes what we match.

1 files changed, 1 insertions, 1 deletions

diff --git a/tr8as.c b/tr8as.c
index 38b327d..fcc2c21 100644
--- a/tr8as.c
+++ b/tr8as.c
@@ -499,7 +499,7 @@ static uint8_t parse_incpng(As *as, char **c)
     uint8_t index;
 
     /* map RGB values to the palette indexes;
-     * any index over 15 is "transparent" with index 128 */
+     * any unmatched value is "transparent" with index 128 */
     for (int i = 0; i < x * y * 3; i += 3)
     {
         for (index = 0; index < 16; index++)