Here is a GIF image and is good for compressing simple images such as logos. For example one option here is to change how many colours there area in the image. So to make a smaller file size while keeping the block colour you just simply turn down how many colours the image produces. At first i chose 4 because it is red white and yellow. However when i did this the edge became grainy and pixelated. I then increased the number of colours to 8 and that sorted the problem and decreased the file size.