Resource Packs

Every feather on the HUD is drawn from grayscale sprites, tinted with two colors: one for the body and one for the outline. Each state picks a feather shape (a variant). For cold, it also picks an overlay, drawn over the whole row. With one JSON file, a resource pack can change the colors, the shape and the overlay of every state. It can also give a state sprites of its own.

Recoloring

Add assets/feathers_of_fatigue/feather_styles.json to your pack:

{
  "styles": {
    "feathers_of_fatigue:cold": { "border": "#1C4652", "overlay": "none" },
    "feathers_of_fatigue:hot": { "variant": "feathers_of_fatigue:glint", "overlay_color": "#FFB000" },
    "feathers_of_fatigue:empty": { "body": "#80282828" }
  }
}

Each entry changes only the fields that it names. The other fields keep the values of Feathers of Fatigue. If several packs have the file, the higher pack wins, field by field. F3+T reads the file again.

Field	What it is
body	The color of the feather. Colors are #RRGGBB, or #AARRGGBB for see-through colors.
border	The color of the outline. Alpha 00 draws no outline.
variant	The feather shape, see below.
overlay	Drawn over the whole row, see below. none removes it.
overlay_color, overlay_accent	The two colors of the overlay.
sprites	A texture of your own, see below.

Style	What it colors	Body	Border	Variant	Overlay
feathers_of_fatigue:green	Your feathers, feather_color = GREEN	#00B53A	#000000	feather
feathers_of_fatigue:blue	Your feathers, feather_color = BLUE	#22A5F0	#000000	feather
feathers_of_fatigue:white	Your feathers, feather_color = WHITE	#F2F2F2	#3C3C3C	feather
feathers_of_fatigue:cold	Your feathers while Cold	#7DEFFF	#000000	crystal	frost (#8DC8FE, #FFFFFF)
feathers_of_fatigue:hot	Your feathers while Hot	#FF870C	#000000	feather	none
feathers_of_fatigue:energized	Your feathers while Energized	#FBEE2B	#000000	glint
feathers_of_fatigue:momentum	Your feathers with Momentum	#00B192	#000000	crystal
feathers_of_fatigue:strain	strain feathers	#FF0E0C	#940000	strained
feathers_of_fatigue:endurance	Bonus (Endurance) rows	#D4AF37	#000000	feather
feathers_of_fatigue:armor	Weight with no color of its own	#B8B9C4	none	plain
feathers_of_fatigue:empty	The empty slots	#282828	#000000	feather
feathers_of_fatigue:exhausted	The empty slots while exhausted	#281616	#000000	feather

Rows after the first use deeper shades of the body color. The empty slots use the outline of their variant and the fill in row 0. Armor pieces and mounts use the plain feather, in the colors of their own textures, with an outline in the complementary color. They have no style to change. You can change styles from other mods the same way, by their ids.

Variants and overlays

Variant	Looks like	Used by
feathers_of_fatigue:feather	The striped feather	Your color, heat, endurance, mounts, armor pieces
feathers_of_fatigue:crystal	Ice, lighter at the top	Cold, momentum
feathers_of_fatigue:glint	A longer highlight and a fading trail	Energized
feathers_of_fatigue:strained	One deep stripe and a lighter edge	strain
feathers_of_fatigue:plain	No stripes, shaded along the edge	Weight with no color

Overlay	Looks like	Used by
feathers_of_fatigue:frost	Frost with icicles. Accent: the white rim	Cold
feathers_of_fatigue:heat	Flames. Accent: the red tongues	Not used by default. Available to styles and packs

Other mods can add variants and overlays of their own. Name them by their ids.

The sprite sheet

feathers_of_fatigue:textures/gui/icons.png is 56x72. It has 6 columns and 8 rows of 9x9 cells from the top-left corner. Two transparent columns on the right make both sizes multiples of 8.

• Bodies and overlays are grayscale, with the shade kept as value.
• Outlines and the empty fill are white.
• Shines are white with their own alpha. They are drawn as they are, over the body.

Row (y)	Cells, left to right (x = 0, 9, 18, 27, 36, 45)
0 (0)	Empty slot fill, regeneration flash
1 (9)	feather: full body, half body, full outline, half outline, full shine, half shine
2 (18)	crystal: the same six cells
3 (27)	glint: the same six cells
4 (36)	strained: the same six cells
5 (45)	plain: the same six cells
6 (54)	frost: primary, accent
7 (63)	heat: primary, accent

To change every feather at once, replace icons.png, and keep it 56x72. To change only one state, point its sprites at a texture of your own with the same layout and size (56x72). The variant and overlay rows of the style then come from that texture.

{
  "styles": {
    "feathers_of_fatigue:cold": { "body": "#FFFFFF", "border": "#FFFFFF", "sprites": "mypack:textures/gui/frosty_feathers.png" }
  }
}

The colors multiply the sprites. Draw in grayscale to keep the tint. To show your colors as they are, draw in full color and set a white body and border.