This Python script is for applying custom subtitle text colour by adding your desired colour attribute into subtitle file in SRT format.

New edition are added, "srt_purplegrey_utf8.py" and "srt_purplegrey_utf16leBOM.py". They both are set to use "light purple grey / #666699" color by default as well as enhanced to handle the case when input SRT file are encoded in UTF8/UTF16le with BOM.

"srt_purplegrey_utf8.py" is for SRT in UTF8 format
"srt_purplegrey_utf16leBOM.py" is for SRT in UTF16LE with BOM (I found some srt saved in this format)

The reason why I drafted this script is due to the imperfection of the feature of dynamic LED brightness for my BenQ X12000H Projector. The pure white or any preset color of font style for subtitle will trigger the dynamic brightness in dark scene, which makes the whole dark scene too bright or we will say grey-out seriously as a result. It affects the mood of the scnene and the movie at the end. In order to fix this, I had the POC to see if subtitle in dark grey colour can be a tricks not to trigger projector built-in dynamic brightness feature in dark scene. BINGO!!! It works flawlessly!!! But I am not going to edit subtitle file one by one manually for the purpose. Therefore, this python script is born.

It's simple a Python script so Python is a must, please ensure your system having python installed

Python download link here just in case https://www.python.org/downloads/

For both new edition "srt_purplegrey_utf8.py" and "srt_purplegrey_utf16leBOM.py", Python verion 3 is a must!!!

Run it in "command prompt" for Windows system, "Terminal" for Macintosh system, or even in NAS with Python environment installed.

The script is looking for 2 arguments, the last one is optional.
1st argument is the filename of the original srt file,
2nd argument is the optional output filename to be desired (You can skip it for sure. *** If no output filename is defined, original file with suffix defined in the script ".greyfont." as suffix will be used) )

Below is the format of the command
sh% python set_srt_colour.py input_subtitle_file.srt [***Optional_output_subtitle_file.srt]

REMARKS: You can redefine your desired colour as well as the default suffix of the output file in the script as following

font_color_code = "#333333" #Here you can define your desired colour code
file_suffix = "greyfont" #Here you can define your desired default suffix of output filename