fix(Colors) alpha calculation increase precision

jfboeve · jfboeve · commit 57c59cbe86c7 · 2022-02-22T11:02:32.000+01:00
diff --git a/src/Colors/utils.js b/src/Colors/utils.js
@@ -63,7 +63,7 @@ export const calculateAlpha = (argb, p) => {
   let r = ((argb / 65536) | 0) % 256
   let g = ((argb / 256) | 0) % 256
   let b = argb % 256
-  return (r << 16) + (g << 8) + b + ((p * 255) | 0) * 16777216
+  return (r << 16) + (g << 8) + b + (Math.round(p * 255) | 0) * 16777216
 }
 
 export const mergeColorAlpha = (c, alpha) => {

Original file line number	Diff line number	Diff line change
`@@ -63,7 +63,7 @@ export const calculateAlpha = (argb, p) => {`
`63`	`63`	`let r = ((argb / 65536) \| 0) % 256`
`64`	`64`	`let g = ((argb / 256) \| 0) % 256`
`65`	`65`	`let b = argb % 256`
`66`		`- return (r << 16) + (g << 8) + b + ((p * 255) \| 0) * 16777216`
	`66`	`+ return (r << 16) + (g << 8) + b + (Math.round(p * 255) \| 0) * 16777216`
`67`	`67`	`}`
`68`	`68`
`69`	`69`	`export const mergeColorAlpha = (c, alpha) => {`