dsh-blue-whale: DeepSeek Chat-style Blue Whale Theme for DSH Web Client

`dsh-blue-whale` is a MIT-licensed DSH appearance plugin maintained by starslittle, specifically designed for the web-based DeepSeek Chat interface to provide a blue skin. It uniformly applies the blue color `#4D6BFE` to brand elements such as the wordmark, icons, and primary buttons, without altering the layout, density, or built-in light/dark/system-follow settings. After installation, it is enabled by default and can be controlled via the toggle in `Settings > General > Blue Whale`; disabling or uninstalling it restores the original color scheme. This plugin is suitable for users who wish to adjust only the visual colors without affecting other UI logic. Please note that the plugin operates with the current process's permissions; it is recommended to review the source code and dependencies before installation.