For every single scene and environment, I like to adjust colors on the screen. Colors that best match what's going on. 

And up until now, I've been... mostly working on guesses. 

- I guess a combination of color values, 

- input them in after making a few clicks ; opening a few windows,

- test-run the game... 

- and see if it looks good.

- It doesn't look good? So I turn off the game,

- Click a few windows again,

- adjust values by guessing again, 

- Then test run the game.

...and the cycle repeats.

To save time (and not having to work by guessing) I created a color adjustment UI in the game itself. Where I can dynamically see how the color changes affect the scene, and how it looks after the effect.

(Super happy I got this made! The older method was really frustrating to work with. T_T )

At the moment, this is just for me, myself. To help with the game's development. 

I may... or may not put this in the finished game for the player. Though I do think for some people, it might be helpful to adjust a few of these thing, like brightness and contrast. (For accessibility reasons.)

...I'll think on it.