New colors for Marlin TFT COLOR UI

[DvoraNoob]

I added 2 new colors to select in the Marlin Color UI

I did it because I don't like the original colors

I only tested in my MKS ROBIN NANO V2 with MKS TFT35 V2

[rhapsodyv]

You need to send this PR to bugfix branch, not the 2.0.x one.

Add some photos of the new themes.

One question: why should we support hard coded pre made themes when all the colors (almost at least) can be overwritten by the configuration?

[rhapsodyv]

See this PR: #19484

[DvoraNoob]

I did this because it is easier to change colors, and not everyone knows how to change colors in the tft_color.h file, I also put variables that were in other files in tft_color.h, now you can change all colors in tft_color.h

I'll take the photos of the predefined themes and make a pull request again on the Bugfix branch

[rhapsodyv]

Take a look in the above PR. You don't need to change the colors, but the color "configs".