generally most of my tweaks have some reason behind them, even if they might not sit right with purists. There's a handful of other miscellaneous changes/tweaks that might skew somewhat arbitrary, but I tried not to go too overboard.
Probably some other QoL touches that I'm forgetting. Jigglypuff, Pikachu, and Vulpix also replace the original starters, and the game features the newer Dark, Steel, and Fairy types. You can talk to the gym guides for a full party heal mid-gym instead of having to leave for the Pokecenter, the game no longer asks for confirmation when trying to use an HM by pressing A while facing something that an HM can be used on, you start the game with a bike, etc. Pokémon Pink is a ROM hack of Blue that lets you venture through Kanto as Kris, the female protagonist from Pokémon Crystal, providing more representation and a new twist. including new items Common Candy and Uncommon Candy which give a flat amount of EXP to help the player keep up with Johto's much steeper level curve. It's not an overly ambitious romhack, the main idea was just to rebalance the Kanto postgame with a sledgehammer by making it so that everyone there rocks level 100 Pokemon (with few exceptions), then I rebalanced Johto to accomodate this and prepare the player so they aren't blindsided by Kanto.