1 pointNote that even though Depth Charts were pioneered by the crypto exchanges, they are available for any L2 feed. They are not as detailed or extensive on stocks L2 feeds because those only have a limited number of entries on either side... But take a look.
1 pointDepth chart is in the beta.
1 pointNice one there. In general, I find that candlestick patterns are not well defined in the literature, and some are definitely of the "you'll recognize it when you see it" variety with very vague terms.