Configures whether should we keep the original screedump files in PPM format when converting them to PNG, according to convert_ppm_files_to_png
To keep the PPM files:
keep_ppm_files = yes
To keep the PPM files only on situations with failures:
keep_ppm_files_on_error = yes
This configuration key is not currently defined on any sample cartesian configuration file, but a sample (commented out) appears on:
No other documentation currently references this configuration key.