cavepaintingcaveman

Hello, I'm trying to change a headers color but I fail. I would like to have the same look but with color RGB 17,17,17 I tried it with saturation, layers and manual adaption. Can anybody help me? Thanks and regards, CC

Thanks for your answers. I really did it right. But now I know what my problem is. The picture I have has a white background and the canvas enlargement is displayed for some reason is white too. I tried a different image and I can see the enlargement now:

Hi, when I try to change the canvas size I won't see the transparent area around my picture and the hole picture is being changed to the canvas size. What am I doing wrong? Thanks and regards, cpcm