I made a script editor theme plugin on my spare time a while ago and I see it needs some new themes. If you have any themes or features you’d like me to add, let me know and I’ll add them.
The plugin can be found here: https://www.roblox.com/library/2250665942/Script-Editor-Themes.
These are the current themes:
this was more me trying to make a nice ui rather then the actual plugin lol
I call it Toasty.
Oh lord yes, i love this. this is what i needed.
The UI doesnt scale well
have to close everything to see the tabs and even then its still not scaled well
I recommend adding a option to add your own personal themes as id like to try the other ones but I dont want to lose the current one im using
I call mine the “Jungle Theme”:
(You probably need to view the first one at full resolution to see the text. I cropped it poorly but my excuse is I took these a long time ago.)
Here’s my theme, Reef.
(also @sircfenner already made a code themes plugin if you want to check it out; link)
It’s interesting to know that people are actually vested in themes. I just use Light Theme and the lame default colours for Roblox Studio, lol. I should probably have a go at changing my theme sometime.
You really should - I find that using a darker theme for Studio not only helps the syntax highlighting and colours stand out, but also is easier on the eyes after a long day of development 
I refuse to use dark theme for Studio, but I will look into changing my colour scheme.
Monokai Sublime is my favourite colour scheme for code editors.
Out of curiosity, why not dark theme?
I’ve been far too accustomed to light theme for the website and Studio since dark theme was only introduced fairly recently. I also do not find dark theme appealing, personally.
Updates:
In Progress:
What’s the font? 
Looks really good.
The font is FiraCode. First GitHub result on Google.
I call it uh um its does not have a name and its not complete with out the Monaco Font
That’s a pretty neat theme! Also here’s a little tip: if you go to the script settings tab and take a screenshot of the colours you used, then it’ll be easier to add your theme to the plugin. That way OP doesn’t have to colour pick the theme colours from the image 
Visual Studio Code + Consolas Bold Font looks pretty neat
Can you add my hacker / CMD theme?:
