Quote from josepezdj on May 11, 2014, 3:49 am

Your problem is not that you have misaligned textures, your problem is that you should make your textures a larger size in order to avoid such texture-scaling in game. Try unpressing the "Scaling Texture lock" button of your toolbar, the one on the right:

However, the texture you show in that screenshot ("scary_light_cracked") is 128x128 pixels, but you are trying to use it for a 128x128 hammer units panel, but that is not the default proportion. 128 hammer units are 512 pixels in "real life". Try to make your texture the size you really need it.

Also, you are using the 'noportal' parameter wrongly:

Wrong = $noportal 1
Correct = "%noportal" 1