How can I add a filter to my screen? Say I'm bored of my screen looking as boring as it normally does, is there a way to add a filter to all the colours on the screen (like an Instagram filter or even something simpler like a red light filter)?

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After some digging around, I unearthed some interesting developer settings that significantly jazz up my homescreen. The added benefit of this in-built solution is it doesn't block app installs :)



There's also the colour inversion option under accessibility settings



I'd post a screenshot of my new homescreen but it seems the filter isn't reflected in screenshots.