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Multi-coloured sparkler trails - A software guide showing you how easy it is to colour sparkler trails
Any software that has a paint brush option with a blend mode setting.
Step 1: Open your sparkler photo
Open in your image editing program. I'm using Photoshop but most will have similar features. Magnify the image so it fills the screen.
Select a brush with a size just bigger than the main trail width of the sparkler - excluding all the thin sparkling strands.
Step 2: Choose the brush size
Step 3: Select the Overlay Blend mode
Select the Overlay blend mode from the brush options. When you paint with this mode itwill make sure paint just goes on the light areas and the black background is unaffected.
Choose a bright colour paint for the brush and start to paint over the trail and the loose sparks. Go a little way around the trail and then change colour and paint some more. Keep doing this until you reach the other end of the trail. You will now have a rainbow style painted trail.
Step 4: Pick a colour and paint
I never claimed to be a painter, but you get the idea. You can, of course, do variations, painting it all one colour or two tone. You can even try using different blend modes. Some give very graphic cartoon style, others give a more surreal effect. Some just paint over the trail and background and are ones to avoid.
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