Hey, AniNovo!
New ct.js version will come out in the nearest days. Maybe today?! In that version, bitmap font rendering issues are fixed, and you will be able to use them more easily, though they don’t support outlines. But you can pick an already outlined font. (Like Kenney Blocks.) Buttons and textboxes will have a checkbox to use bitmap fonts, and for regular labels, there will be a new base class specifically for pixel-perfect text.
Stay tuned~~