New versions missing old version themes

**Is your feature request related to a problem? Please describe.**
The main theme I use is missing and can only be found in version 2023.3.1 of rider, it was called rikkadark
**Describe the solution you'd like**
Would like to have the theme back and available for all ides

**Describe alternatives you've considered**
Having back the theme

**Additional context**
No need
