Decimals are rounded (`rgb(...) -> toRgb`)

[matthias-ccri]

This code produces rounded output:

tinycolor('rgb(255, 25.5, 0)').toRgb();
// {r: 255, g: 26, b: 0, a: 1}

25.5 was rounded to 26.

Is the rounding intentional?

See this PR which adds a failing unit test: #277

[matthias-ccri]

The code looks like it's rounding intentionally:

TinyColor/tinycolor.js

Lines 132 to 139 in 13851a7

	toRgb: function toRgb() {
	return {
	r: Math.round(this._r),
	g: Math.round(this._g),
	b: Math.round(this._b),
	a: this._a
	};
	},

Just curious, what's the reason for rounding? In CSS, decimal numbers are valid. Is there another concern?

Would you be open to either removing the rounding or adding a toRgbValues function? There is no existing function that just gets the rgb values.

My use case is data transformation. I'm getting data from a server where the colors are in an RGB object format. I transform them into CSS colors for the web UI, where a user can edit the colors and save them back to the server. So the pipeline is rgba values -> rgba string -> rgba values. In this case it's ideal that the colors remain as-is and not be rounded.

[matthias-ccri]

Ah, I see not all older browsers support float values in rgb expressions: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/rgb#browser_compatibility

Is a PR welcome for implementing toRgbValues? I've adjusted my MR to implement that.

Reasoning: RGB values can be used for other things besides CSS expressions, so there's value in preserving decimal places.

[matthias-ccri]

Anyone here?