Here’s the Deal
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When comparing Vivala Code vs Hasklig, the Slant community recommends Hasklig for most people. In the question“What are the best programming fonts?” Hasklig is ranked 28th while Vivala Code is ranked 108th.
Specs
ItalicsYes
LigaturesYes
Weights1 (Regular)
Zero StyleDot
ItalicsYes
LigaturesYes
Weights7 (Extralight, Light, Regular, Medium, Semibold, Bold, Black)
Zero StyleDot
AlternativeLigatures: ttf-iosevka-ss09-[version].zip / No Ligatures: ttf-iosevka-fixed-ss09-[version].zip
Based OnAdobe Source Code Pro
ClearTypeNo
LicenseOFL-1.1
OpenTypeYes
Powerline SupportYes
RasterNo
SerifSans
TrueTypeYes
VectorYes
Ranked in these QuestionsQuestion Ranking
Common Questions
Other Questions
Pros
Pro Programming ligatures
Pro Great for Haskell
Pro Has a heavier appearance than Fira Code or Monoid
Pro Completely free and open source
Freely available via GitHub, therefore can be modified and improved by anyone.
Pro Has many variants such as Italic, Bold Italic, Light, Semibold, etc., etc
Cons
No cons yet!
Con Lacks !=
Some coding fonts with ligatures, like Fira Code, turn != into ≠, but Hasklig does not. The reason for this is that Hasklig was designed for Haskell code, and so turns /= into ≠ instead.
Con Some Ligatures like -<< don't look that good.
Con Has a heavier appearance than Fira Code or Monoid
Con No support for many editors, including emacs
Unfortunately, not supporting emacs is the number one reason I don't use this font all the time.
Con Very cute but not WYSIWYG
You want to see exactly what you've typed, not have your brain have to do a little dance every time you see one of these artifacts.