The Image Darkmodifier plugin lets you apply visual filters to images directly through your markdown syntax. By using special annotations like `@darkmode`, `@invert`, or `@transparent`, you can transform how embedded images appear - inverting colours, removing white backgrounds, or boosting lightness for better visibility in dark themes. The plugin supports both local and remote image links, inline markdown, and even raw HTML `<img>` tags. Filters are applied in order from left to right, and users can customise parameters like transparency thresholds or lightness levels using a concise, structured syntax.