Custom Icons

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In the future, I want some buttons or other things with custom icons. All icons should be saved in individual files and then baked into one big file using a script. There are two options:

Option 1: A font

When I can create a font with all the icons and then import it into ImGui correctly, This section of the Dear ImGui docs demonstrate the usage of colorful emojis so it should work. I also want to be able to use the icons somewhere else (like in a 2d_overlay) so there must be a possibility to get the texture ID of the ImGui font atlas and the UV coords of a specific glyph.
This is the preferred way.

Option 2: A separate texture

Write a python script to bake all icons into one texture, generate code for their coordinates and use it like this. Only works if there's a possibility to make a ImageButton with text and image.

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Maybe useful for option 1: https://github.com/mnesarco/bawr/blob/main/ImGui.md