Following up on this, I think either TextureManager or something in GlStateManager needs to be "reset" after being used each time, that way colors don't appear in other objects they're not suppose to. I tried GlStateManager.resetColor(), but that doesn't work

I would use the pop and push methods.

 

public void draw(){
        textureManager.bindTexture(get);
        GlStateManager.pushMatrix();

        //---- outline ----
        GlStateManager.enableAlpha();
        drawTexturedModalRect(0, 0, 0, 0, xSize, ySize);

        //---- inner ----
        drawRect(3, 4, getRightCoord(), ySize - 3, GuiHandler.ENERGYBAR);

        GlStateManager.popMatrix();
        GlStateManager.resetColor();
    }

 

Unfortunately that's not it either That's what I have so far

If anyone has this problem and needs a fix, use GlStateManager.color(255,255,255,255) after drawing an object.