On-screen text

UiApi draws clean vector-style text that stays the same size on screen at any GUI scale. It is client only.

Draw text

Put your drawing inside overlay. It lays everything out in one fixed frame, so width and height give that frame's size.

UiApi.overlay(graphics, () -> {
    int w = UiApi.width(graphics);
    UiApi.centred(graphics, UiApi.Font.DISPLAY, "Hello", w / 2.0F, 120.0F, 0xFFFFFFFF);
    UiApi.text(graphics, UiApi.Font.MONO, "HP 100", 24.0F, 48.0F, 0xFF7FB0FF);
});

y is the text baseline, and colours are ARGB. Both text methods return the drawn width.

Fonts

Font	Use it for
DISPLAY	Large titles
LABEL	Small labels
MONO	Numbers and figures

More control

// align: 0 left, 0.5 centre, 1 right
UiApi.text(graphics, UiApi.Font.LABEL, "Right", x, y, 1.0F, 1.5F, 0xFFFFFFFF);

float w = UiApi.measure(graphics, UiApi.Font.LABEL, "Measure me", 1.0F);

UiApi.box(graphics, x, y, w, 2.0F, 0x80FFFFFF);

Minecraft 26.3

On 26.3 these methods take GuiGraphicsExtractor instead of GuiGraphics.