Overview

Would it be possible to allow zero as a safe value for --highlight-lines? Example:

silicon --to-clipboard --highlight-lines 0 example.rb

Essentially, a value of zero would be like a no-op and as if the --highlight-lines option was never used. The reason why this is valuable is for wrapping in a shell script. Without this being possible, the following error happens instead:

Segmentation fault: 11

Screenshots/Screencasts

Here is an example of a shell script that sets --highlight-lines to zero as a default option which will fail with the above mentioned error. It would be nice to allow zero in this situation.

Steps to Recreate

touch example.rb
silicon --to-clipboard --highlight-lines 0 example.rb

Desired Behavior

Don't throw a segfault and ignore --highlight-lines instead since it's a no-op.