v0.6.7

MathTeXEngine v0.6.7

Diff since v0.6.6

Merged pull requests:

• Fix loading TeX Gyre Pagella fonts (#138) (@jipolanco)
• Bump actions/checkout from 4 to 5 (#140) (@dependabot[bot])
• Add escaped commands (#144) (@dawbarton)

Closed issues:

• First glyph after curly braces start is missing (#118)
• Support escaped percent (#127)