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<p>Hi all,</p>
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<p>try out this:</p>
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<div>m := Morph new color: (Color red alpha: 0.5).</div>
<div>m openInHand.</div>
<div>m imageForm openAsMorph.</div>
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Output:
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<p><img size="8995" contenttype="image/png" id="img383607" style="max-width: 99.9%; user-select: none;" contextid="img231790" tabindex="0" src="cid:b8fe602f-7ca6-47d9-bd34-b5b52440cad7"><br>
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<p>And for completeness' sake, "<span>m imageForm asMorph imageForm openAsMorph" appears just a bit darker again.</span></p>
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</span></p>
<p><span>I traced the issue down to two methods: For the regular Morph, FormCanvas >> #<span>setFillColor:, and for the ImageMorph, Canvas >> #<span>translucentImage:at:sourceRect:. In both methods, at the end, the rule Form blend is used to draw the image.
If I change it to Form over, the colors are the same and the issue seems to be fixed.</span></span></span></p>
<p><span><span><span>But unfortunately, I could not find any documentation about the different Form rules such as #blend, #over, #paint etc. Can you give me some pointers?</span></span></span></p>
<p><span><span><span><br>
</span></span></span></p>
<p><span style="font-size: 12pt;">Also, I noted the comment in #translucentImage:at:sourceRect: which states</span><span style="font-size: 12pt;">:</span><br>
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<div>"Draw a translucent image using the best available way of representing translucency.</div>
<div><span style="white-space:pre"></span>Note: This will be fixed in the future."</div>
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<p><span>Which workaround is this comment referring to?</span></p>
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<p><span>Looking forward to your help! :-)</span></p>
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<p><span>Best,</span></p>
<p><span>Christoph</span></p>
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