Londrina Solid font is missing polish characters

The font Londrina Solid (and other variants of this font) is missing an amount of characters. For instance the characters: ż, ł,
Is it possible to add those (and other special characters that are needed for this kind of languages) to the font?

**Describe the bug**
Not exactly a bug. But we have problems using the font, because we are using it for several languages. It would be nice if the font is complete to use it for different countries and languages.
We use the e-learning program Storyline and included the Londrina font. In the polish language some of the characters are replaced with times new roman now.

**To Reproduce**
Type the special characters in the input field to see that it's not supported.
https://www.1001fonts.com/londrina-font.html

**Expected behavior**
Characters that are used in the polish language to be included in the font.

Start by reviewing the Londrina Solid font and its variants, focusing on the Polish characters listed in the issue such as ż and ł. Confirm the required character set and font sources before making changes; done means Polish text in Storyline no longer falls back to Times New Roman.

Written by the indexing model from the issue text.