TintedButton.h

#import <UIKit/UIKit.h>

@interface TintedButton : UIButton

@end

TintedButton.m

#import "TintedButton.h"

@implementation TintedButton

- (void)fix
{
    for (NSNumber *state in @[@(UIControlStateNormal),
                              @(UIControlStateHighlighted),
                              @(UIControlStateSelected),
                              @(UIControlStateHighlighted|UIControlStateSelected),
                              @(UIControlStateDisabled)])
    {
        [self setImage:[self imageForState:state.unsignedIntegerValue] forState:state.unsignedIntegerValue];
        [self setBackgroundImage:[self backgroundImageForState:state.unsignedIntegerValue] forState:state.unsignedIntegerValue];
    }
}

- (id)initWithCoder:(NSCoder *)aDecoder
{
    if (self = [super initWithCoder:aDecoder]) {
        [self fix];
    }
    return self;
}

- (void)setImage:(UIImage *)image forState:(UIControlState)state
{
    [super setImage:[image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate] forState:state];
}

- (void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state
{
    [super setBackgroundImage:[image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate] forState:state];
}

@end