The generated initials avatars can be black on black

[contyk]

If a contact doesn't have an avatar set, Telegram generates one using the contact's initials.

This theme uses a set of background colous that Telegram chooses "randomly", and black as the foreground color. Sometimes the chosen background is black, however, resulting in a fully black circle.

[contyk]

I wonder if it's controlled by this definition: https://github.com/dracula/telegram/blob/master/colors.tdesktop-theme#L235