Please read the reqirements!
"The logo must be according to the following criterions:
- modern, minimalist;
- 512 x 512 pixels with transparent background or vector file;
- the logo must be recognizable, even at small resolution;
- we only need the symbol for the logo, it shouldn't have text in it;
- the logo must be unique and relevant to the Bismuth brand (reminds of a B, b, python, crystal, atom, etc..) do not post any blatant clone of other projects."