To create the coloured signal bars to use as a filter over a band image I made these on Adobe InDesign. Firstly I opened up the program and went
new document>paper size: A4>Ok
Next I clicked the
rectangle frame tool at the left side toolbar...
...and drew my first rectangle frame onto the page, I
copied and
pasted this a few times to get the right amount I needed using the
black selection tool to select boxes and move them around.
To line my boxes up equally I moved one of the boxes slightly closer to the one I wanted to align it with and waited for the arrows to appear at either end to tell me they are equal. I also used guide lines by dragging down/across from the rulers.
Next to change each bar to the correct colour I clicked on the Fill tool to select my colour then the apply colour tool afterwards to use it.
Once I finished the colour bar effect I saved it as an Indesign file because that way the background would remain transparent as this file type is supported in Photoshop where I will be superimposing it over my band image.