Yoast Sitemap Color Coding Query

Hello there,

can anyone help me on this, when you click on this sitemap link of mine

https://uniformsarees.com/sitemap_index.xml

3 url are in lighter gray color while rest are bit darker, what does that mean, I am asking coz my main page which I want google to index appears in lighter gray tone and out of 984 url in it, negligible numbers (30 exactly) siimes to be indexed by google.

What does this color code mean and what should I do now, coz its been more than 24 hrs I submitted the sitemap which has around 1650 total url, only 233 seems to be indexed and our of these 233 most are irrelevent.

Plz help.

The page I need help with: [log in to see the link]