Themes
        
        
            
                Server-side
- There are two themes embedded in the application:
light, located in src\public\stylesheets\theme-light.cssdark, located in src\public\stylesheets\theme-dark.css
 - The default theme is set only once, when the database is created and is managed by 
options_init#initNotSyncedOptions.- On Electron, the choice between 
light and dark is done based on the OS preference. - Otherwise, the theme is always 
dark. 
 - The theme is served via 
src\routes\index.ts, in the getThemeCssUrl method. 
Client-side
- The two predefined themes are hard-coded in the client in 
src\public\app\widgets\type_widgets\options\appearance\theme.js. - The user-defined themes are obtained via a call to the server: 
options/user-themes. - The theme retrieval is done via a request