Images can be losslessly shrunk

[fulldecent]

Most/all of the images in the app can be losslessly shrunk. This means they can be encoded better and still have pixel-for-pixel parity with what is currently in this repository.

That saves megabytes off of the final application size.

Solving this issue permanently requires to add a script to package.json which will optimize vector images (SVGs) and possibly raster images. This could be implemented as a test case -- test passes if all SVG = optimized(SVG).

Work plan

• Find a suitable SVG optimizer, like https://www.npmjs.com/package/svgo and find the right command line or a small script which optimizes an SVG
• Integrate this into the test scripts

Follow on work

After the above, if there is additional scope available to optimize raster images then we can use a different approach. This is because raster optimization is much slower.

[ta-lind]

Noticed it's only addressing the DCR symbol? If the context allows, that too could be as a vector format – svg.

[fulldecent]

Here are a list of image optimizers that ImageOptim uses. They are all open source