Hi Qing, happy to see that a fellow economics student is here in this class with me, haha. I enjoyed reading about your inclusive design of using colour contrast and using transcripts to help learners with these specific impairments. I wrote something quite similar to yours with changing the colour of the learning material to shades on a grayscale and also allowing for videos to have closed captions. Additionally, your example of POUR was something I never heard of but I can see that this was a great set of principles to follow by in allowing others to gain access to the learning material. Great blog post!