Color blocks are not idempotent

[Red_Panda]

I just discovered that the color blocks are not idempotent

It could cause confusion

[TIMAI2]

https://ai2.metricrat.co.uk/scraps/android-and-html-colour-codes

[ABG]

Did that -65536 come out of an AI2 color operation?

[Red_Panda]

Definitely

[TIMAI2]

@ewpatton has already explained all of this somewhere (probably on the old forum)

[SteveJG]

This is probably the old Forum post?

[ABG]

If you stretch equality to include modulo 2^32, are the two values ‘equal’ ?

[Red_Panda]

Jep, fixed it

So if you want to compare colors and want to make sure theyare equal, compare with the modulo block

[Juan_Antonio]

I have published an example:

Color number in Make color and Split color

Yellow color is: R = 255 G = 255 B = 0 opacity = 255 What color number is yellow using the make color block? N = B + (G + (R + (256 x opacity)) x 256 ) x 256 N = 0 + (255 + (255 + (256 x 255)) x 256 ) x 256 = 4294967040 With split color what list do we get with yellow color? [255, 255, 0, 255] What number is the yellow color? 4294967040 - 4294967296 = -256 [colores_RVA] colores_RVA.aia (2.6 KB) Here tutorials in Spanish: http://kio4.com/appinventor/20D_separar_rva.htm http:/…

[ABG]

(added to Colors FAQ)

FAQ Section: Colours

Colored text in an HTML Label - @Anke Colour Codes - MIT Colour Codes Android and HTML - TimAi2 Use modulo 2^32 when comparing colors - Red_Panda