Nice simple game!
I like the unique ability to able to swap between colors and shapes within the same line, it can really open up a lot of new routes that usually wouldn't be possible, and honestly creates a good skill factor, since I've had to have missed a lot of them because my eyes just cant do it quick enough. Although, the moving of the shapes make it really hard to find patterns, and it was quite frustrating to work around.
Also, it would help a bit to have more of than explained within the game itself, since I only learned that by messing around. It took me awhile to also realize that you cannot connect them via diagonals, since that is a very common feature of many match 3 style games.
The idea of making loops to get triple points does work to change how you view and setup the board, but I wonder if there is more available to work with the idea of looping. A simple (but maybe complex mentally) idea is that the tiles within the board never get cleared out, and simply drop down and when used, go back up to the top and fall within their column again. While this might lead to some infinities, I think just adding some other guard like cant use the same color / shape twice in a row could prevent it.
The art style is very clean and nice, I like the look of the game a lot.
Being able to switch colors is a nice touch, maybe being useful to catch different types of color blindness, but its also nice to use as a new way to look at the board if you cant find anything quickly.
Nice job!