design: SVG-Image color scheme

[elbotho]

At a later stage we could edit all SVG images to use the same colors.
(preferably with text-replace 🌵 )

Color Ideas

Selected for compatibility with B/W-Print

[elbotho]

There are some SVGs with white backgrounds.
Those should be removed.

[elbotho]

Here are the exact color codes.

black
#000000 // cmyk(%): 0 0 0 100

blue (same as sblue)
#007ec1 // cmyk(%): 83 41 0 0

orange
#de7c5f // cmyk(%): 12 60 66 0

green
#b6c96d // cmyk(%): 36 5 76 0

lightgray
#f8f8f8 // cmyk(%): 0 0 0 20