Click the green flag to display two versions of a backdrop and a group of sprites, both of which are made monochrome using a color effect trick: Hover over A to show a slider that lets you set the brightness effect for the versions to the left. Click anywhere to cycle through backdrop images. Click the stop button to see the original color version.
✦ ✦ ✦ NOTES ✦ ✦ ✦ The difference between the left (A) and right (B) versions is that they use different methods for the monochrome effect. Method A is simply setting the color effect to Infinity. Method B is slightly more complex. A clone is created directly on top of the original, and its color effect is set to 100 (the opposite hue) and its ghost effect is set to 50 (half transparent). You can also do it with stamps, in which case you don't need to make a clone. As you can see, there are pros and cons with both methods. Method A is very simple, and the result is pure gray-scale. But it often produces too dark or high-contrast images. This can be alleviated to a certain extent by increasing the brightness, but it doesn't quite fix the problem. This is most obvious with the flower image. Method B produces very nice tones, but does not produce pure gray-scale. This is particularly noticeable with light blue hues. ✦ ✦ ✦ CREDITS ✦ ✦ ✦ I was inspired to do this after seeing several comments on @Scratch-Minion's wonderful Monochrome Your Project series, suggesting that he should use the other method: https://scratch.mit.edu/projects/509111423 https://scratch.mit.edu/projects/510094028 https://scratch.mit.edu/projects/510095254/ I learned method A from @RokCoder: https://scratch.mit.edu/studios/25643089/comments/#comments-108240236 I think I originally learned method B from @gtoal's project "How to display a sprite in black & white": https://scratch.mit.edu/projects/116458484 That project is a remix of @Brontosplachna's very creative and fun project "Add Your Face": https://scratch.mit.edu/projects/89354871 @Kouzeru improves the results of method B greatly by adjusting the color weighting in his project "Image decolorization methods": https://scratch.mit.edu/projects/498658206/ Thanks to @mybearworld for pointing out that brightness effect can alleviate the problem with dark images for method A.
