I redid my sub badges to match the CMYK Colourrrs theme I created for text editors, IDE's, and terminals.
I also added some new tier 2 and tier 3 badge flair that I think looks a bit better than my last one.
The tier 1 subs are a black square with a coloured number, while the tier 2 and tier 3 badges have a fancy gradient outline depending on the tier.
Below you can see all the ideas I went through before settling on the ones above.
For 18, 24 and 30 months (1.5, 2, and 2.5 year respectively), I thought those deserved some different treatment. I wasn't sure on the treatment to go with but I ended up not changing the background colour.
Do you have a preferred style for 18, 24 and 30 months? Let me know in the comments!