First I'd like to thank you for developing Geany as it has been my preferred IDE for 7 years due to how customizable and fast it is, especially over ssh/X forwarding. I also use VS Code in certain instances, and one of the features that I really wish was in Geany is the bracket pair colorization. Has anyone proposed this or is currently working on such functionality? 

I decided to take a crack at implementing this into geany via a plugin based on this blog post: https://code.visualstudio.com/blogs/2021/09/29/bracket-pair-colorization

I got a simple a proof of concept working, basically using SCI_BRACEMATCH with indicators that colored braces with SCI_INDICSETSTYLE/INDIC_TEXTFORE/SCI_INDICSETFORE

Is this approach reasonable? I'm not sure how well this will scale on large documents or if using indicators for this purpose is valid

Thanks!