With this mod, you can create a Content Patcher pack that points to a png file with a partial or full furniture texture and that texture will be drawn as prismatic when drawing the associated furniture.

An example content.json file:

{
<br />&nbsp;&nbsp; &nbsp;"Format": "1.25.0",
<br />&nbsp;&nbsp; &nbsp;"Changes": [
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;{
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"Action": "Load",
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"Target": "aedenthorn.PrismaticBed",
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"FromFile": "assets/bed.png"
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;},
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;{
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"Action": "EditData",
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"Target": "aedenthorn.PrismaticFurniture/dictionary",
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"Entries": {
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"Bed": {
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"id": "Bed",
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;"texturePath": "aedenthorn.PrismaticBed",
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; "speed":2
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;}
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;}
<br />&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;}
<br />&nbsp;&nbsp; &nbsp;]
<br />}

"speed" refers to how fast color shifting occurs. The entry keys should be the name of the furniture (not the display name).

You can also set a decimal "offset", to start the shifting on a different color, though I haven't tested to see how that works.

The png file should be the same size as the furniture source rectangle on the spritesheet, including variations (rotation, on/off, etc.).

An example pack is here.

Technical

Requires SMAPI, uses Harmony.

Compatible with Mod Updater for automatic updates.

Code is at https://github.com/aedenthorn/StardewValleyMods.

If you want to complain or ask for help or help me test my mods, you can visit my Discord server.

A list of all my mods for Stardew Valley is available at https://www.nexusmods.com/stardewvalley/articles/895.

Prismatic Furniture