ImageEditor, Background color matches dark gray theme. Renamed to Stylize-V, due to Blender name reserved for devs only. Versioning after installing, is Version 1.0.5. // If I was to "fix" all versioning name issues, new name, I need to delete this extension. I'll evaluate this in the future. For now, you can install in Blender 4.2-5 without issues.
Cleared extra parameters in the .toml fanifesto.
Please consider reading the full-page details about this theme in the GitHub Page where you can see picture comparisons and why the color choices of this theme were used to provide a better user experience coherent with the 3D viewport and all other editors.