I replaced 300+ levels that had multiple solutions with levels with single solution.

Back in 2019 when I wrote the level generation code, I didn't really mind having multiple solutions to the levels. In my mind it was a fun twist on the Hitori game. But over the years this was the main reason for a 1 star review on Google Play Store and on third party game websites. 

Since I want to make the game better for players, recently, when I had the time, I wrote a multiple solution check to the level generation pipeline. I came up with a simple, not even 1000 lines of code algorithm, that checked for multiple solutions in existing levels. Back then, I wrote the generator in JavaScript and now I'm coding in C#, so I made some automation to combine the two solutions and replace the levels.

The level generation is still not perfect and there may be still levels with multiple solutions - maybe I'll revisit the project in 5 years. :)

Light theme available in settings.

Nowadays a lot of Apps have Dark/Light theme and I wanted to add it too. It's nice to have options for different types of players.

I went through the entire project and extracted all the colors used in every scene, text, button, sprite and animation to a big list of colors. Then I made a separate list for light theme and a few scripts to set the colors.  This was very simple and very tedious, but now I have an ok looking theme in the settings.