CudaText plugin.
It disables internal picture viewer (see Python code for possible file-types: png/jpeg/bmp/ico).
Instead CudaText will open these files in internal hex viewer.
Plugin is not in addons-manager.
It is too tiny.
To install: call "Plugins / Addons Manager / Install from Git", enter URL
https://github.com/CudaText-addons/cuda ... ure_viewer