Various Texmaker Themes
This repository contains TeXstudio themes that are gathered from various sources in Internet.
Here is the procedure on how to apply these themes in TeXstudio
Don’t forget to make a copy of your current highlighting scheme in case you want to switch back later.
step 1 : Open TeXstudio Application,Navigate to Options on Toolbar and click save profile
step 2 : Go to the folder directory where would you like to save the theme file,name the file(here it’s mytheme) and clik save.So in this case the file will be saved as mytheme.txsprofile
step 3 : Now go to file->open and open the file that we have saved just now (mytheme.txsprofile) (tip : make sure that you have selected All files)
step 4 : Now replace the text from the line [formats] till end (don’t remove the text before [formats]) with your desired theme text, click save and close the file
Step 5 : Goto Options once again and press load profile and then select our previous file ( i.e. mytheme.txsprofile)
Once you restart, your desired theme will hopefully be applied.
Solarized_Dark 
Solarized_Light 
Monokai 
Flatland 