[QP] Native palette support for fonts

[elpekenin]

Description

PR for native colors on assets didn't update the code for rendering texts, only images, causing some lock ups. To prevent code duplication (and similar issues in the future) i've moved the code into a new function which wraps the two appenders(pixel and byte variants).

I don't like the chosen name very much, im open to suggestions

PS: Can fonts be coloured anyway?

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

• [Bug] [QP] Fonts lock up the board when using -f rgb565 (i.e. native format) #20632

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[tzarc]

PS: Can fonts be coloured anyway?

Yes, can create a font image however you like, that's why it's a 2-stage process.

See https://cdn.discordapp.com/attachments/587004793004884086/1102385305656492133/font.mp4

Adapted from: https://github.com/ianhan/BitmapFonts/blob/main/32X32-FA.png

[elpekenin]

Yeah, bad wording... What i was actually wondering is whether the .ttf(and friends) files can store colors.
Users can definitely change the intermediate font image if they want to

[github-actions]

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[elpekenin]

For what is worth.. i've been running this for a couple months and i didnt notice any issues drawing either images(non-native ones) or fonts(both native and not).

Will try and use a native image tomorrow for the sake of completeness and report back (if i dont forget to test)

[elpekenin]

Just confirmed native image too. Replaced an image from mono2 to rgb565 and i dont see any difference.