I was messing around in the Ghost admin panel under Code Injection settings and succeeded in changing the text color of my HTML <code> blocks to from red to black.
Now that I've made the change, I can't figure out how to undo it.
Adding a <style> block doesn't seem to change anything, nor does a dynamic script seem to help.
Edit: I verified that it's not a caching issue, nor is it limited to a specific browser.
On the left-hand side of the Ghost admin screen is a tab titled "Code Injection". In this section, Ghost offers users the ability to inject valid HTML/CSS/JS on the top or bottom of each post.
I tried a number of possible solutions in there, but out of desperation, went back and tried using a <style> block once more. I was able to change the color by entering this value in the header, saving changes, then deleting and saving again:
<style>
code {
color: black;
}
</style>
It's possible that I entered my formatting fixes into the <footer> box or mistyped a character, but I'd be curious to know which.